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/**
 * Deprecated functions from past WordPress versions. You shouldn&#039;t use these
 * functions and look for the alternatives instead. The functions will be
 * removed in a later version.
 *
 * @package WordPress
 * @subpackage Deprecated
 */

/*
 * Deprecated functions come here to die.
 */

/**
 * Retrieves all post data for a given post.
 *
 * @since 0.71
 * @deprecated 1.5.1 Use get_post()
 * @see get_post()
 *
 * @param int $postid Post ID.
 * @return array Post data.
 */
function get_postdata($postid) {
	_deprecated_function( __FUNCTION__, &#039;1.5.1&#039;, &#039;get_post()&#039; );

	$post = get_post($postid);

	$postdata = array (
		&#039;ID&#039; =&gt; $post-&gt;ID,
		&#039;Author_ID&#039; =&gt; $post-&gt;post_author,
		&#039;Date&#039; =&gt; $post-&gt;post_date,
		&#039;Content&#039; =&gt; $post-&gt;post_content,
		&#039;Excerpt&#039; =&gt; $post-&gt;post_excerpt,
		&#039;Title&#039; =&gt; $post-&gt;post_title,
		&#039;Category&#039; =&gt; $post-&gt;post_category,
		&#039;post_status&#039; =&gt; $post-&gt;post_status,
		&#039;comment_status&#039; =&gt; $post-&gt;comment_status,
		&#039;ping_status&#039; =&gt; $post-&gt;ping_status,
		&#039;post_password&#039; =&gt; $post-&gt;post_password,
		&#039;to_ping&#039; =&gt; $post-&gt;to_ping,
		&#039;pinged&#039; =&gt; $post-&gt;pinged,
		&#039;post_type&#039; =&gt; $post-&gt;post_type,
		&#039;post_name&#039; =&gt; $post-&gt;post_name
	);

	return $postdata;
}

/**
 * Sets up the WordPress Loop.
 *
 * Use The Loop instead.
 *
 * @link https://developer.wordpress.org/themes/basics/the-loop/
 *
 * @since 1.0.1
 * @deprecated 1.5.0
 *
 * @global WP_Query $wp_query WordPress Query object.
 */
function start_wp() {
	global $wp_query;

	_deprecated_function( __FUNCTION__, &#039;1.5.0&#039;, __(&#039;new WordPress Loop&#039;) );

	// Since the old style loop is being used, advance the query iterator here.
	$wp_query-&gt;next_post();

	setup_postdata( get_post() );
}

/**
 * Returns or prints a category ID.
 *
 * @since 0.71
 * @deprecated 0.71 Use get_the_category()
 * @see get_the_category()
 *
 * @param bool $display Optional. Whether to display the output. Default true.
 * @return int Category ID.
 */
function the_category_ID($display = true) {
	_deprecated_function( __FUNCTION__, &#039;0.71&#039;, &#039;get_the_category()&#039; );

	// Grab the first cat in the list.
	$categories = get_the_category();
	$cat = $categories[0]-&gt;term_id;

	if ( $display )
		echo $cat;

	return $cat;
}

/**
 * Prints a category with optional text before and after.
 *
 * @since 0.71
 * @deprecated 0.71 Use get_the_category_by_ID()
 * @see get_the_category_by_ID()
 *
 * @param string $before Optional. Text to display before the category. Default empty.
 * @param string $after  Optional. Text to display after the category. Default empty.
 */
function the_category_head( $before = &#039;&#039;, $after = &#039;&#039; ) {
	global $currentcat, $previouscat;

	_deprecated_function( __FUNCTION__, &#039;0.71&#039;, &#039;get_the_category_by_ID()&#039; );

	// Grab the first cat in the list.
	$categories = get_the_category();
	$currentcat = $categories[0]-&gt;category_id;
	if ( $currentcat != $previouscat ) {
		echo $before;
		echo get_the_category_by_ID($currentcat);
		echo $after;
		$previouscat = $currentcat;
	}
}

/**
 * Prints a link to the previous post.
 *
 * @since 1.5.0
 * @deprecated 2.0.0 Use previous_post_link()
 * @see previous_post_link()
 *
 * @param string $format
 * @param string $previous
 * @param string $title
 * @param string $in_same_cat
 * @param int    $limitprev
 * @param string $excluded_categories
 */
function previous_post($format=&#039;%&#039;, $previous=&#039;previous post: &#039;, $title=&#039;yes&#039;, $in_same_cat=&#039;no&#039;, $limitprev=1, $excluded_categories=&#039;&#039;) {

	_deprecated_function( __FUNCTION__, &#039;2.0.0&#039;, &#039;previous_post_link()&#039; );

	if ( empty($in_same_cat) || &#039;no&#039; == $in_same_cat )
		$in_same_cat = false;
	else
		$in_same_cat = true;

	$post = get_previous_post($in_same_cat, $excluded_categories);

	if ( !$post )
		return;

	$string = &#039;&lt;a href=&quot;&#039;.get_permalink($post-&gt;ID).&#039;&quot;&gt;&#039;.$previous;
	if ( &#039;yes&#039; == $title )
		$string .= apply_filters(&#039;the_title&#039;, $post-&gt;post_title, $post-&gt;ID);
	$string .= &#039;&lt;/a&gt;&#039;;
	$format = str_replace(&#039;%&#039;, $string, $format);
	echo $format;
}

/**
 * Prints link to the next post.
 *
 * @since 0.71
 * @deprecated 2.0.0 Use next_post_link()
 * @see next_post_link()
 *
 * @param string $format
 * @param string $next
 * @param string $title
 * @param string $in_same_cat
 * @param int $limitnext
 * @param string $excluded_categories
 */
function next_post($format=&#039;%&#039;, $next=&#039;next post: &#039;, $title=&#039;yes&#039;, $in_same_cat=&#039;no&#039;, $limitnext=1, $excluded_categories=&#039;&#039;) {
	_deprecated_function( __FUNCTION__, &#039;2.0.0&#039;, &#039;next_post_link()&#039; );

	if ( empty($in_same_cat) || &#039;no&#039; == $in_same_cat )
		$in_same_cat = false;
	else
		$in_same_cat = true;

	$post = get_next_post($in_same_cat, $excluded_categories);

	if ( !$post	)
		return;

	$string = &#039;&lt;a href=&quot;&#039;.get_permalink($post-&gt;ID).&#039;&quot;&gt;&#039;.$next;
	if ( &#039;yes&#039; == $title )
		$string .= apply_filters(&#039;the_title&#039;, $post-&gt;post_title, $post-&gt;ID);
	$string .= &#039;&lt;/a&gt;&#039;;
	$format = str_replace(&#039;%&#039;, $string, $format);
	echo $format;
}

/**
 * Whether user can create a post.
 *
 * @since 1.5.0
 * @deprecated 2.0.0 Use current_user_can()
 * @see current_user_can()
 *
 * @param int $user_id
 * @param int $blog_id Not Used
 * @param int $category_id Not Used
 * @return bool
 */
function user_can_create_post($user_id, $blog_id = 1, $category_id = &#039;None&#039;) {
	_deprecated_function( __FUNCTION__, &#039;2.0.0&#039;, &#039;current_user_can()&#039; );

	$author_data = get_userdata($user_id);
	return ($author_data-&gt;user_level &gt; 1);
}

/**
 * Whether user can create a post.
 *
 * @since 1.5.0
 * @deprecated 2.0.0 Use current_user_can()
 * @see current_user_can()
 *
 * @param int $user_id
 * @param int $blog_id Not Used
 * @param int $category_id Not Used
 * @return bool
 */
function user_can_create_draft($user_id, $blog_id = 1, $category_id = &#039;None&#039;) {
	_deprecated_function( __FUNCTION__, &#039;2.0.0&#039;, &#039;current_user_can()&#039; );

	$author_data = get_userdata($user_id);
	return ($author_data-&gt;user_level &gt;= 1);
}

/**
 * Whether user can edit a post.
 *
 * @since 1.5.0
 * @deprecated 2.0.0 Use current_user_can()
 * @see current_user_can()
 *
 * @param int $user_id
 * @param int $post_id
 * @param int $blog_id Not Used
 * @return bool
 */
function user_can_edit_post($user_id, $post_id, $blog_id = 1) {
	_deprecated_function( __FUNCTION__, &#039;2.0.0&#039;, &#039;current_user_can()&#039; );

	$author_data = get_userdata($user_id);
	$post = get_post($post_id);
	$post_author_data = get_userdata($post-&gt;post_author);

	if ( (($user_id == $post_author_data-&gt;ID) &amp;&amp; !($post-&gt;post_status == &#039;publish&#039; &amp;&amp; $author_data-&gt;user_level &lt; 2))
			|| ($author_data-&gt;user_level &gt; $post_author_data-&gt;user_level)
			|| ($author_data-&gt;user_level &gt;= 10) ) {
		return true;
	} else {
		return false;
	}
}

/**
 * Whether user can delete a post.
 *
 * @since 1.5.0
 * @deprecated 2.0.0 Use current_user_can()
 * @see current_user_can()
 *
 * @param int $user_id
 * @param int $post_id
 * @param int $blog_id Not Used
 * @return bool
 */
function user_can_delete_post($user_id, $post_id, $blog_id = 1) {
	_deprecated_function( __FUNCTION__, &#039;2.0.0&#039;, &#039;current_user_can()&#039; );

	// Right now if one can edit, one can delete.
	return user_can_edit_post($user_id, $post_id, $blog_id);
}

/**
 * Whether user can set new posts&#039; dates.
 *
 * @since 1.5.0
 * @deprecated 2.0.0 Use current_user_can()
 * @see current_user_can()
 *
 * @param int $user_id
 * @param int $blog_id Not Used
 * @param int $category_id Not Used
 * @return bool
 */
function user_can_set_post_date($user_id, $blog_id = 1, $category_id = &#039;None&#039;) {
	_deprecated_function( __FUNCTION__, &#039;2.0.0&#039;, &#039;current_user_can()&#039; );

	$author_data = get_userdata($user_id);
	return (($author_data-&gt;user_level &gt; 4) &amp;&amp; user_can_create_post($user_id, $blog_id, $category_id));
}

/**
 * Whether user can delete a post.
 *
 * @since 1.5.0
 * @deprecated 2.0.0 Use current_user_can()
 * @see current_user_can()
 *
 * @param int $user_id
 * @param int $post_id
 * @param int $blog_id Not Used
 * @return bool returns true if $user_id can edit $post_id&#039;s date
 */
function user_can_edit_post_date($user_id, $post_id, $blog_id = 1) {
	_deprecated_function( __FUNCTION__, &#039;2.0.0&#039;, &#039;current_user_can()&#039; );

	$author_data = get_userdata($user_id);
	return (($author_data-&gt;user_level &gt; 4) &amp;&amp; user_can_edit_post($user_id, $post_id, $blog_id));
}

/**
 * Whether user can delete a post.
 *
 * @since 1.5.0
 * @deprecated 2.0.0 Use current_user_can()
 * @see current_user_can()
 *
 * @param int $user_id
 * @param int $post_id
 * @param int $blog_id Not Used
 * @return bool returns true if $user_id can edit $post_id&#039;s comments
 */
function user_can_edit_post_comments($user_id, $post_id, $blog_id = 1) {
	_deprecated_function( __FUNCTION__, &#039;2.0.0&#039;, &#039;current_user_can()&#039; );

	// Right now if one can edit a post, one can edit comments made on it.
	return user_can_edit_post($user_id, $post_id, $blog_id);
}

/**
 * Whether user can delete a post.
 *
 * @since 1.5.0
 * @deprecated 2.0.0 Use current_user_can()
 * @see current_user_can()
 *
 * @param int $user_id
 * @param int $post_id
 * @param int $blog_id Not Used
 * @return bool returns true if $user_id can delete $post_id&#039;s comments
 */
function user_can_delete_post_comments($user_id, $post_id, $blog_id = 1) {
	_deprecated_function( __FUNCTION__, &#039;2.0.0&#039;, &#039;current_user_can()&#039; );

	// Right now if one can edit comments, one can delete comments.
	return user_can_edit_post_comments($user_id, $post_id, $blog_id);
}

/**
 * Can user can edit other user.
 *
 * @since 1.5.0
 * @deprecated 2.0.0 Use current_user_can()
 * @see current_user_can()
 *
 * @param int $user_id
 * @param int $other_user
 * @return bool
 */
function user_can_edit_user($user_id, $other_user) {
	_deprecated_function( __FUNCTION__, &#039;2.0.0&#039;, &#039;current_user_can()&#039; );

	$user  = get_userdata($user_id);
	$other = get_userdata($other_user);
	if ( $user-&gt;user_level &gt; $other-&gt;user_level || $user-&gt;user_level &gt; 8 || $user-&gt;ID == $other-&gt;ID )
		return true;
	else
		return false;
}

/**
 * Gets the links associated with category $cat_name.
 *
 * @since 0.71
 * @deprecated 2.1.0 Use get_bookmarks()
 * @see get_bookmarks()
 *
 * @param string $cat_name         Optional. The category name to use. If no match is found, uses all.
 *                                 Default &#039;noname&#039;.
 * @param string $before           Optional. The HTML to output before the link. Default empty.
 * @param string $after            Optional. The HTML to output after the link. Default &#039;&lt;br /&gt;&#039;.
 * @param string $between          Optional. The HTML to output between the link/image and its description.
 *                                 Not used if no image or $show_images is true. Default &#039; &#039;.
 * @param bool   $show_images      Optional. Whether to show images (if defined). Default true.
 * @param string $orderby          Optional. The order to output the links. E.g. &#039;id&#039;, &#039;name&#039;, &#039;url&#039;,
 *                                 &#039;description&#039;, &#039;rating&#039;, or &#039;owner&#039;. Default &#039;id&#039;.
 *                                 If you start the name with an underscore, the order will be reversed.
 *                                 Specifying &#039;rand&#039; as the order will return links in a random order.
 * @param bool   $show_description Optional. Whether to show the description if show_images=false/not defined.
 *                                 Default true.
 * @param bool   $show_rating      Optional. Show rating stars/chars. Default false.
 * @param int    $limit            Optional. Limit to X entries. If not specified, all entries are shown.
 *                                 Default -1.
 * @param int    $show_updated     Optional. Whether to show last updated timestamp. Default 0.
 */
function get_linksbyname($cat_name = &quot;noname&quot;, $before = &#039;&#039;, $after = &#039;&lt;br /&gt;&#039;, $between = &quot; &quot;, $show_images = true, $orderby = &#039;id&#039;,
						$show_description = true, $show_rating = false,
						$limit = -1, $show_updated = 0) {
	_deprecated_function( __FUNCTION__, &#039;2.1.0&#039;, &#039;get_bookmarks()&#039; );

	$cat_id = -1;
	$cat = get_term_by(&#039;name&#039;, $cat_name, &#039;link_category&#039;);
	if ( $cat )
		$cat_id = $cat-&gt;term_id;

	get_links($cat_id, $before, $after, $between, $show_images, $orderby, $show_description, $show_rating, $limit, $show_updated);
}

/**
 * Gets the links associated with the named category.
 *
 * @since 1.0.1
 * @deprecated 2.1.0 Use wp_list_bookmarks()
 * @see wp_list_bookmarks()
 *
 * @param string $category The category to use.
 * @param string $args
 * @return string|null
 */
function wp_get_linksbyname($category, $args = &#039;&#039;) {
	_deprecated_function(__FUNCTION__, &#039;2.1.0&#039;, &#039;wp_list_bookmarks()&#039;);

	$defaults = array(
		&#039;after&#039; =&gt; &#039;&lt;br /&gt;&#039;,
		&#039;before&#039; =&gt; &#039;&#039;,
		&#039;categorize&#039; =&gt; 0,
		&#039;category_after&#039; =&gt; &#039;&#039;,
		&#039;category_before&#039; =&gt; &#039;&#039;,
		&#039;category_name&#039; =&gt; $category,
		&#039;show_description&#039; =&gt; 1,
		&#039;title_li&#039; =&gt; &#039;&#039;,
	);

	$parsed_args = wp_parse_args( $args, $defaults );

	return wp_list_bookmarks($parsed_args);
}

/**
 * Gets an array of link objects associated with category $cat_name.
 *
 *     $links = get_linkobjectsbyname( &#039;fred&#039; );
 *     foreach ( $links as $link ) {
 *      	echo &#039;&lt;li&gt;&#039; . $link-&gt;link_name . &#039;&lt;/li&gt;&#039;;
 *     }
 *
 * @since 1.0.1
 * @deprecated 2.1.0 Use get_bookmarks()
 * @see get_bookmarks()
 *
 * @param string $cat_name Optional. The category name to use. If no match is found, uses all.
 *                         Default &#039;noname&#039;.
 * @param string $orderby  Optional. The order to output the links. E.g. &#039;id&#039;, &#039;name&#039;, &#039;url&#039;,
 *                         &#039;description&#039;, &#039;rating&#039;, or &#039;owner&#039;. Default &#039;name&#039;.
 *                         If you start the name with an underscore, the order will be reversed.
 *                         Specifying &#039;rand&#039; as the order will return links in a random order.
 * @param int    $limit    Optional. Limit to X entries. If not specified, all entries are shown.
 *                         Default -1.
 * @return array
 */
function get_linkobjectsbyname($cat_name = &quot;noname&quot; , $orderby = &#039;name&#039;, $limit = -1) {
	_deprecated_function( __FUNCTION__, &#039;2.1.0&#039;, &#039;get_bookmarks()&#039; );

	$cat_id = -1;
	$cat = get_term_by(&#039;name&#039;, $cat_name, &#039;link_category&#039;);
	if ( $cat )
		$cat_id = $cat-&gt;term_id;

	return get_linkobjects($cat_id, $orderby, $limit);
}

/**
 * Gets an array of link objects associated with category n.
 *
 * Usage:
 *
 *     $links = get_linkobjects(1);
 *     if ($links) {
 *     	foreach ($links as $link) {
 *     		echo &#039;&lt;li&gt;&#039;.$link-&gt;link_name.&#039;&lt;br /&gt;&#039;.$link-&gt;link_description.&#039;&lt;/li&gt;&#039;;
 *     	}
 *     }
 *
 * Fields are:
 *
 * - link_id
 * - link_url
 * - link_name
 * - link_image
 * - link_target
 * - link_category
 * - link_description
 * - link_visible
 * - link_owner
 * - link_rating
 * - link_updated
 * - link_rel
 * - link_notes
 *
 * @since 1.0.1
 * @deprecated 2.1.0 Use get_bookmarks()
 * @see get_bookmarks()
 *
 * @param int    $category Optional. The category to use. If no category supplied, uses all.
 *                         Default 0.
 * @param string $orderby  Optional. The order to output the links. E.g. &#039;id&#039;, &#039;name&#039;, &#039;url&#039;,
 *                         &#039;description&#039;, &#039;rating&#039;, or &#039;owner&#039;. Default &#039;name&#039;.
 *                         If you start the name with an underscore, the order will be reversed.
 *                         Specifying &#039;rand&#039; as the order will return links in a random order.
 * @param int    $limit    Optional. Limit to X entries. If not specified, all entries are shown.
 *                         Default 0.
 * @return array
 */
function get_linkobjects($category = 0, $orderby = &#039;name&#039;, $limit = 0) {
	_deprecated_function( __FUNCTION__, &#039;2.1.0&#039;, &#039;get_bookmarks()&#039; );

	$links = get_bookmarks( array( &#039;category&#039; =&gt; $category, &#039;orderby&#039; =&gt; $orderby, &#039;limit&#039; =&gt; $limit ) ) ;

	$links_array = array();
	foreach ($links as $link)
		$links_array[] = $link;

	return $links_array;
}

/**
 * Gets the links associated with category &#039;cat_name&#039; and display rating stars/chars.
 *
 * @since 0.71
 * @deprecated 2.1.0 Use get_bookmarks()
 * @see get_bookmarks()
 *
 * @param string $cat_name         Optional. The category name to use. If no match is found, uses all.
 *                                 Default &#039;noname&#039;.
 * @param string $before           Optional. The HTML to output before the link. Default empty.
 * @param string $after            Optional. The HTML to output after the link. Default &#039;&lt;br /&gt;&#039;.
 * @param string $between          Optional. The HTML to output between the link/image and its description.
 *                                 Not used if no image or $show_images is true. Default &#039; &#039;.
 * @param bool   $show_images      Optional. Whether to show images (if defined). Default true.
 * @param string $orderby          Optional. The order to output the links. E.g. &#039;id&#039;, &#039;name&#039;, &#039;url&#039;,
 *                                 &#039;description&#039;, &#039;rating&#039;, or &#039;owner&#039;. Default &#039;id&#039;.
 *                                 If you start the name with an underscore, the order will be reversed.
 *                                 Specifying &#039;rand&#039; as the order will return links in a random order.
 * @param bool   $show_description Optional. Whether to show the description if show_images=false/not defined.
 *                                 Default true.
 * @param int    $limit		       Optional. Limit to X entries. If not specified, all entries are shown.
 *                                 Default -1.
 * @param int    $show_updated     Optional. Whether to show last updated timestamp. Default 0.
 */
function get_linksbyname_withrating($cat_name = &quot;noname&quot;, $before = &#039;&#039;, $after = &#039;&lt;br /&gt;&#039;, $between = &quot; &quot;,
									$show_images = true, $orderby = &#039;id&#039;, $show_description = true, $limit = -1, $show_updated = 0) {
	_deprecated_function( __FUNCTION__, &#039;2.1.0&#039;, &#039;get_bookmarks()&#039; );

	get_linksbyname($cat_name, $before, $after, $between, $show_images, $orderby, $show_description, true, $limit, $show_updated);
}

/**
 * Gets the links associated with category n and display rating stars/chars.
 *
 * @since 0.71
 * @deprecated 2.1.0 Use get_bookmarks()
 * @see get_bookmarks()
 *
 * @param int    $category         Optional. The category to use. If no category supplied, uses all.
 *                                 Default 0.
 * @param string $before           Optional. The HTML to output before the link. Default empty.
 * @param string $after            Optional. The HTML to output after the link. Default &#039;&lt;br /&gt;&#039;.
 * @param string $between          Optional. The HTML to output between the link/image and its description.
 *                                 Not used if no image or $show_images is true. Default &#039; &#039;.
 * @param bool   $show_images      Optional. Whether to show images (if defined). Default true.
 * @param string $orderby          Optional. The order to output the links. E.g. &#039;id&#039;, &#039;name&#039;, &#039;url&#039;,
 *                                 &#039;description&#039;, &#039;rating&#039;, or &#039;owner&#039;. Default &#039;id&#039;.
 *                                 If you start the name with an underscore, the order will be reversed.
 *                                 Specifying &#039;rand&#039; as the order will return links in a random order.
 * @param bool   $show_description Optional. Whether to show the description if show_images=false/not defined.
 *                                 Default true.
 * @param int    $limit		       Optional. Limit to X entries. If not specified, all entries are shown.
 *                                 Default -1.
 * @param int    $show_updated     Optional. Whether to show last updated timestamp. Default 0.
 */
function get_links_withrating($category = -1, $before = &#039;&#039;, $after = &#039;&lt;br /&gt;&#039;, $between = &quot; &quot;, $show_images = true,
							$orderby = &#039;id&#039;, $show_description = true, $limit = -1, $show_updated = 0) {
	_deprecated_function( __FUNCTION__, &#039;2.1.0&#039;, &#039;get_bookmarks()&#039; );

	get_links($category, $before, $after, $between, $show_images, $orderby, $show_description, true, $limit, $show_updated);
}

/**
 * Gets the auto_toggle setting.
 *
 * @since 0.71
 * @deprecated 2.1.0
 *
 * @param int $id The category to get. If no category supplied uses 0
 * @return int Only returns 0.
 */
function get_autotoggle($id = 0) {
	_deprecated_function( __FUNCTION__, &#039;2.1.0&#039; );
	return 0;
}

/**
 * Lists categories.
 *
 * @since 0.71
 * @deprecated 2.1.0 Use wp_list_categories()
 * @see wp_list_categories()
 *
 * @param int $optionall
 * @param string $all
 * @param string $sort_column
 * @param string $sort_order
 * @param string $file
 * @param bool $list
 * @param int $optiondates
 * @param int $optioncount
 * @param int $hide_empty
 * @param int $use_desc_for_title
 * @param bool $children
 * @param int $child_of
 * @param int $categories
 * @param int $recurse
 * @param string $feed
 * @param string $feed_image
 * @param string $exclude
 * @param bool $hierarchical
 * @return null|false
 */
function list_cats($optionall = 1, $all = &#039;All&#039;, $sort_column = &#039;ID&#039;, $sort_order = &#039;asc&#039;, $file = &#039;&#039;, $list = true, $optiondates = 0,
				$optioncount = 0, $hide_empty = 1, $use_desc_for_title = 1, $children=false, $child_of=0, $categories=0,
				$recurse=0, $feed = &#039;&#039;, $feed_image = &#039;&#039;, $exclude = &#039;&#039;, $hierarchical=false) {
	_deprecated_function( __FUNCTION__, &#039;2.1.0&#039;, &#039;wp_list_categories()&#039; );

	$query = compact(&#039;optionall&#039;, &#039;all&#039;, &#039;sort_column&#039;, &#039;sort_order&#039;, &#039;file&#039;, &#039;list&#039;, &#039;optiondates&#039;, &#039;optioncount&#039;, &#039;hide_empty&#039;, &#039;use_desc_for_title&#039;, &#039;children&#039;,
		&#039;child_of&#039;, &#039;categories&#039;, &#039;recurse&#039;, &#039;feed&#039;, &#039;feed_image&#039;, &#039;exclude&#039;, &#039;hierarchical&#039;);
	return wp_list_cats($query);
}

/**
 * Lists categories.
 *
 * @since 1.2.0
 * @deprecated 2.1.0 Use wp_list_categories()
 * @see wp_list_categories()
 *
 * @param string|array $args
 * @return null|string|false
 */
function wp_list_cats($args = &#039;&#039;) {
	_deprecated_function( __FUNCTION__, &#039;2.1.0&#039;, &#039;wp_list_categories()&#039; );

	$parsed_args = wp_parse_args( $args );

	// Map to new names.
	if ( isset($parsed_args[&#039;optionall&#039;]) &amp;&amp; isset($parsed_args[&#039;all&#039;]))
		$parsed_args[&#039;show_option_all&#039;] = $parsed_args[&#039;all&#039;];
	if ( isset($parsed_args[&#039;sort_column&#039;]) )
		$parsed_args[&#039;orderby&#039;] = $parsed_args[&#039;sort_column&#039;];
	if ( isset($parsed_args[&#039;sort_order&#039;]) )
		$parsed_args[&#039;order&#039;] = $parsed_args[&#039;sort_order&#039;];
	if ( isset($parsed_args[&#039;optiondates&#039;]) )
		$parsed_args[&#039;show_last_update&#039;] = $parsed_args[&#039;optiondates&#039;];
	if ( isset($parsed_args[&#039;optioncount&#039;]) )
		$parsed_args[&#039;show_count&#039;] = $parsed_args[&#039;optioncount&#039;];
	if ( isset($parsed_args[&#039;list&#039;]) )
		$parsed_args[&#039;style&#039;] = $parsed_args[&#039;list&#039;] ? &#039;list&#039; : &#039;break&#039;;
	$parsed_args[&#039;title_li&#039;] = &#039;&#039;;

	return wp_list_categories($parsed_args);
}

/**
 * Deprecated method for generating a drop-down of categories.
 *
 * @since 0.71
 * @deprecated 2.1.0 Use wp_dropdown_categories()
 * @see wp_dropdown_categories()
 *
 * @param int $optionall
 * @param string $all
 * @param string $orderby
 * @param string $order
 * @param int $show_last_update
 * @param int $show_count
 * @param int $hide_empty
 * @param bool $optionnone
 * @param int $selected
 * @param int $exclude
 * @return string
 */
function dropdown_cats($optionall = 1, $all = &#039;All&#039;, $orderby = &#039;ID&#039;, $order = &#039;asc&#039;,
		$show_last_update = 0, $show_count = 0, $hide_empty = 1, $optionnone = false,
		$selected = 0, $exclude = 0) {
	_deprecated_function( __FUNCTION__, &#039;2.1.0&#039;, &#039;wp_dropdown_categories()&#039; );

	$show_option_all = &#039;&#039;;
	if ( $optionall )
		$show_option_all = $all;

	$show_option_none = &#039;&#039;;
	if ( $optionnone )
		$show_option_none = _x( &#039;None&#039;, &#039;Categories dropdown (show_option_none parameter)&#039; );

	$vars = compact(&#039;show_option_all&#039;, &#039;show_option_none&#039;, &#039;orderby&#039;, &#039;order&#039;,
					&#039;show_last_update&#039;, &#039;show_count&#039;, &#039;hide_empty&#039;, &#039;selected&#039;, &#039;exclude&#039;);
	$query = add_query_arg($vars, &#039;&#039;);
	return wp_dropdown_categories($query);
}

/**
 * Lists authors.
 *
 * @since 1.2.0
 * @deprecated 2.1.0 Use wp_list_authors()
 * @see wp_list_authors()
 *
 * @param bool $optioncount
 * @param bool $exclude_admin
 * @param bool $show_fullname
 * @param bool $hide_empty
 * @param string $feed
 * @param string $feed_image
 * @return null|string
 */
function list_authors($optioncount = false, $exclude_admin = true, $show_fullname = false, $hide_empty = true, $feed = &#039;&#039;, $feed_image = &#039;&#039;) {
	_deprecated_function( __FUNCTION__, &#039;2.1.0&#039;, &#039;wp_list_authors()&#039; );

	$args = compact(&#039;optioncount&#039;, &#039;exclude_admin&#039;, &#039;show_fullname&#039;, &#039;hide_empty&#039;, &#039;feed&#039;, &#039;feed_image&#039;);
	return wp_list_authors($args);
}

/**
 * Retrieves a list of post categories.
 *
 * @since 1.0.1
 * @deprecated 2.1.0 Use wp_get_post_categories()
 * @see wp_get_post_categories()
 *
 * @param int $blogid Not Used
 * @param int $post_id
 * @return array
 */
function wp_get_post_cats($blogid = &#039;1&#039;, $post_id = 0) {
	_deprecated_function( __FUNCTION__, &#039;2.1.0&#039;, &#039;wp_get_post_categories()&#039; );
	return wp_get_post_categories($post_id);
}

/**
 * Sets the categories that the post ID belongs to.
 *
 * @since 1.0.1
 * @deprecated 2.1.0
 * @deprecated Use wp_set_post_categories()
 * @see wp_set_post_categories()
 *
 * @param int $blogid Not used
 * @param int $post_id
 * @param array $post_categories
 * @return bool|mixed
 */
function wp_set_post_cats($blogid = &#039;1&#039;, $post_id = 0, $post_categories = array()) {
	_deprecated_function( __FUNCTION__, &#039;2.1.0&#039;, &#039;wp_set_post_categories()&#039; );
	return wp_set_post_categories($post_id, $post_categories);
}

/**
 * Retrieves a list of archives.
 *
 * @since 0.71
 * @deprecated 2.1.0 Use wp_get_archives()
 * @see wp_get_archives()
 *
 * @param string $type
 * @param string $limit
 * @param string $format
 * @param string $before
 * @param string $after
 * @param bool $show_post_count
 * @return string|null
 */
function get_archives($type=&#039;&#039;, $limit=&#039;&#039;, $format=&#039;html&#039;, $before = &#039;&#039;, $after = &#039;&#039;, $show_post_count = false) {
	_deprecated_function( __FUNCTION__, &#039;2.1.0&#039;, &#039;wp_get_archives()&#039; );
	$args = compact(&#039;type&#039;, &#039;limit&#039;, &#039;format&#039;, &#039;before&#039;, &#039;after&#039;, &#039;show_post_count&#039;);
	return wp_get_archives($args);
}

/**
 * Returns or Prints link to the author&#039;s posts.
 *
 * @since 1.2.0
 * @deprecated 2.1.0 Use get_author_posts_url()
 * @see get_author_posts_url()
 *
 * @param bool $display
 * @param int $author_id
 * @param string $author_nicename Optional.
 * @return string|null
 */
function get_author_link($display, $author_id, $author_nicename = &#039;&#039;) {
	_deprecated_function( __FUNCTION__, &#039;2.1.0&#039;, &#039;get_author_posts_url()&#039; );

	$link = get_author_posts_url($author_id, $author_nicename);

	if ( $display )
		echo $link;
	return $link;
}

/**
 * Print list of pages based on arguments.
 *
 * @since 0.71
 * @deprecated 2.1.0 Use wp_link_pages()
 * @see wp_link_pages()
 *
 * @param string $before
 * @param string $after
 * @param string $next_or_number
 * @param string $nextpagelink
 * @param string $previouspagelink
 * @param string $pagelink
 * @param string $more_file
 * @return string
 */
function link_pages($before=&#039;&lt;br /&gt;&#039;, $after=&#039;&lt;br /&gt;&#039;, $next_or_number=&#039;number&#039;, $nextpagelink=&#039;next page&#039;, $previouspagelink=&#039;previous page&#039;,
					$pagelink=&#039;%&#039;, $more_file=&#039;&#039;) {
	_deprecated_function( __FUNCTION__, &#039;2.1.0&#039;, &#039;wp_link_pages()&#039; );

	$args = compact(&#039;before&#039;, &#039;after&#039;, &#039;next_or_number&#039;, &#039;nextpagelink&#039;, &#039;previouspagelink&#039;, &#039;pagelink&#039;, &#039;more_file&#039;);
	return wp_link_pages($args);
}

/**
 * Get value based on option.
 *
 * @since 0.71
 * @deprecated 2.1.0 Use get_option()
 * @see get_option()
 *
 * @param string $option
 * @return string
 */
function get_settings($option) {
	_deprecated_function( __FUNCTION__, &#039;2.1.0&#039;, &#039;get_option()&#039; );

	return get_option($option);
}

/**
 * Print the permalink of the current post in the loop.
 *
 * @since 0.71
 * @deprecated 1.2.0 Use the_permalink()
 * @see the_permalink()
 */
function permalink_link() {
	_deprecated_function( __FUNCTION__, &#039;1.2.0&#039;, &#039;the_permalink()&#039; );
	the_permalink();
}

/**
 * Print the permalink to the RSS feed.
 *
 * @since 0.71
 * @deprecated 2.3.0 Use the_permalink_rss()
 * @see the_permalink_rss()
 *
 * @param string $deprecated
 */
function permalink_single_rss($deprecated = &#039;&#039;) {
	_deprecated_function( __FUNCTION__, &#039;2.3.0&#039;, &#039;the_permalink_rss()&#039; );
	the_permalink_rss();
}

/**
 * Gets the links associated with category.
 *
 * @since 1.0.1
 * @deprecated 2.1.0 Use wp_list_bookmarks()
 * @see wp_list_bookmarks()
 *
 * @param string $args a query string
 * @return null|string
 */
function wp_get_links($args = &#039;&#039;) {
	_deprecated_function( __FUNCTION__, &#039;2.1.0&#039;, &#039;wp_list_bookmarks()&#039; );

	if ( ! str_contains( $args, &#039;=&#039; ) ) {
		$cat_id = $args;
		$args = add_query_arg( &#039;category&#039;, $cat_id, $args );
	}

	$defaults = array(
		&#039;after&#039; =&gt; &#039;&lt;br /&gt;&#039;,
		&#039;before&#039; =&gt; &#039;&#039;,
		&#039;between&#039; =&gt; &#039; &#039;,
		&#039;categorize&#039; =&gt; 0,
		&#039;category&#039; =&gt; &#039;&#039;,
		&#039;echo&#039; =&gt; true,
		&#039;limit&#039; =&gt; -1,
		&#039;orderby&#039; =&gt; &#039;name&#039;,
		&#039;show_description&#039; =&gt; true,
		&#039;show_images&#039; =&gt; true,
		&#039;show_rating&#039; =&gt; false,
		&#039;show_updated&#039; =&gt; true,
		&#039;title_li&#039; =&gt; &#039;&#039;,
	);

	$parsed_args = wp_parse_args( $args, $defaults );

	return wp_list_bookmarks($parsed_args);
}

/**
 * Gets the links associated with category by ID.
 *
 * @since 0.71
 * @deprecated 2.1.0 Use get_bookmarks()
 * @see get_bookmarks()
 *
 * @param int    $category         Optional. The category to use. If no category supplied uses all.
 *                                 Default 0.
 * @param string $before           Optional. The HTML to output before the link. Default empty.
 * @param string $after            Optional. The HTML to output after the link. Default &#039;&lt;br /&gt;&#039;.
 * @param string $between          Optional. The HTML to output between the link/image and its description.
 *                                 Not used if no image or $show_images is true. Default &#039; &#039;.
 * @param bool   $show_images      Optional. Whether to show images (if defined). Default true.
 * @param string $orderby          Optional. The order to output the links. E.g. &#039;id&#039;, &#039;name&#039;, &#039;url&#039;,
 *                                 &#039;description&#039;, &#039;rating&#039;, or &#039;owner&#039;. Default &#039;name&#039;.
 *                                 If you start the name with an underscore, the order will be reversed.
 *                                 Specifying &#039;rand&#039; as the order will return links in a random order.
 * @param bool   $show_description Optional. Whether to show the description if show_images=false/not defined.
 *                                 Default true.
 * @param bool   $show_rating      Optional. Show rating stars/chars. Default false.
 * @param int    $limit            Optional. Limit to X entries. If not specified, all entries are shown.
 *                                 Default -1.
 * @param int    $show_updated     Optional. Whether to show last updated timestamp. Default 1.
 * @param bool   $display          Whether to display the results, or return them instead.
 * @return null|string
 */
function get_links($category = -1, $before = &#039;&#039;, $after = &#039;&lt;br /&gt;&#039;, $between = &#039; &#039;, $show_images = true, $orderby = &#039;name&#039;,
			$show_description = true, $show_rating = false, $limit = -1, $show_updated = 1, $display = true) {
	_deprecated_function( __FUNCTION__, &#039;2.1.0&#039;, &#039;get_bookmarks()&#039; );

	$order = &#039;ASC&#039;;
	if ( str_starts_with($orderby, &#039;_&#039;) ) {
		$order = &#039;DESC&#039;;
		$orderby = substr($orderby, 1);
	}

	if ( $category == -1 ) // get_bookmarks() uses &#039;&#039; to signify all categories.
		$category = &#039;&#039;;

	$results = get_bookmarks(array(&#039;category&#039; =&gt; $category, &#039;orderby&#039; =&gt; $orderby, &#039;order&#039; =&gt; $order, &#039;show_updated&#039; =&gt; $show_updated, &#039;limit&#039; =&gt; $limit));

	if ( !$results )
		return;

	$output = &#039;&#039;;

	foreach ( (array) $results as $row ) {
		if ( !isset($row-&gt;recently_updated) )
			$row-&gt;recently_updated = false;
		$output .= $before;
		if ( $show_updated &amp;&amp; $row-&gt;recently_updated )
			$output .= get_option(&#039;links_recently_updated_prepend&#039;);
		$the_link = &#039;#&#039;;
		if ( !empty($row-&gt;link_url) )
			$the_link = esc_url($row-&gt;link_url);
		$rel = $row-&gt;link_rel;
		if ( &#039;&#039; != $rel )
			$rel = &#039; rel=&quot;&#039; . $rel . &#039;&quot;&#039;;

		$desc = esc_attr(sanitize_bookmark_field(&#039;link_description&#039;, $row-&gt;link_description, $row-&gt;link_id, &#039;display&#039;));
		$name = esc_attr(sanitize_bookmark_field(&#039;link_name&#039;, $row-&gt;link_name, $row-&gt;link_id, &#039;display&#039;));
		$title = $desc;

		if ( $show_updated )
			if ( !str_starts_with($row-&gt;link_updated_f, &#039;00&#039;) )
				$title .= &#039; (&#039;.__(&#039;Last updated&#039;) . &#039; &#039; . gmdate(get_option(&#039;links_updated_date_format&#039;), $row-&gt;link_updated_f + (get_option(&#039;gmt_offset&#039;) * HOUR_IN_SECONDS)) . &#039;)&#039;;

		if ( &#039;&#039; != $title )
			$title = &#039; title=&quot;&#039; . $title . &#039;&quot;&#039;;

		$alt = &#039; alt=&quot;&#039; . $name . &#039;&quot;&#039;;

		$target = $row-&gt;link_target;
		if ( &#039;&#039; != $target )
			$target = &#039; target=&quot;&#039; . $target . &#039;&quot;&#039;;

		$output .= &#039;&lt;a href=&quot;&#039; . $the_link . &#039;&quot;&#039; . $rel . $title . $target. &#039;&gt;&#039;;

		if ( &#039;&#039; != $row-&gt;link_image &amp;&amp; $show_images ) {
			if ( str_contains( $row-&gt;link_image, &#039;http&#039; ) )
				$output .= &#039;&lt;img src=&quot;&#039; . $row-&gt;link_image . &#039;&quot;&#039; . $alt . $title . &#039; /&gt;&#039;;
			else // If it&#039;s a relative path.
				$output .= &#039;&lt;img src=&quot;&#039; . get_option(&#039;siteurl&#039;) . $row-&gt;link_image . &#039;&quot;&#039; . $alt . $title . &#039; /&gt;&#039;;
		} else {
			$output .= $name;
		}

		$output .= &#039;&lt;/a&gt;&#039;;

		if ( $show_updated &amp;&amp; $row-&gt;recently_updated )
			$output .= get_option(&#039;links_recently_updated_append&#039;);

		if ( $show_description &amp;&amp; &#039;&#039; != $desc )
			$output .= $between . $desc;

		if ($show_rating) {
			$output .= $between . get_linkrating($row);
		}

		$output .= &quot;$after\n&quot;;
	} // End while.

	if ( !$display )
		return $output;
	echo $output;
}

/**
 * Output entire list of links by category.
 *
 * Output a list of all links, listed by category, using the settings in
 * $wpdb-&gt;linkcategories and output it as a nested HTML unordered list.
 *
 * @since 1.0.1
 * @deprecated 2.1.0 Use wp_list_bookmarks()
 * @see wp_list_bookmarks()
 *
 * @param string $order Sort link categories by &#039;name&#039; or &#039;id&#039;
 */
function get_links_list($order = &#039;name&#039;) {
	_deprecated_function( __FUNCTION__, &#039;2.1.0&#039;, &#039;wp_list_bookmarks()&#039; );

	$order = strtolower($order);

	// Handle link category sorting.
	$direction = &#039;ASC&#039;;
	if ( str_starts_with( $order, &#039;_&#039; ) ) {
		$direction = &#039;DESC&#039;;
		$order = substr($order,1);
	}

	if ( !isset($direction) )
		$direction = &#039;&#039;;

	$cats = get_categories(array(&#039;type&#039; =&gt; &#039;link&#039;, &#039;orderby&#039; =&gt; $order, &#039;order&#039; =&gt; $direction, &#039;hierarchical&#039; =&gt; 0));

	// Display each category.
	if ( $cats ) {
		foreach ( (array) $cats as $cat ) {
			// Handle each category.

			// Display the category name.
			echo &#039;  &lt;li id=&quot;linkcat-&#039; . $cat-&gt;term_id . &#039;&quot; class=&quot;linkcat&quot;&gt;&lt;h2&gt;&#039; . apply_filters(&#039;link_category&#039;, $cat-&gt;name ) . &quot;&lt;/h2&gt;\n\t&lt;ul&gt;\n&quot;;
			// Call get_links() with all the appropriate params.
			get_links($cat-&gt;term_id, &#039;&lt;li&gt;&#039;, &quot;&lt;/li&gt;&quot;, &quot;\n&quot;, true, &#039;name&#039;, false);

			// Close the last category.
			echo &quot;\n\t&lt;/ul&gt;\n&lt;/li&gt;\n&quot;;
		}
	}
}

/**
 * Show the link to the links popup and the number of links.
 *
 * @since 0.71
 * @deprecated 2.1.0
 *
 * @param string $text the text of the link
 * @param int $width the width of the popup window
 * @param int $height the height of the popup window
 * @param string $file the page to open in the popup window
 * @param bool $count the number of links in the db
 */
function links_popup_script($text = &#039;Links&#039;, $width=400, $height=400, $file=&#039;links.all.php&#039;, $count = true) {
	_deprecated_function( __FUNCTION__, &#039;2.1.0&#039; );
}

/**
 * Legacy function that retrieved the value of a link&#039;s link_rating field.
 *
 * @since 1.0.1
 * @deprecated 2.1.0 Use sanitize_bookmark_field()
 * @see sanitize_bookmark_field()
 *
 * @param object $link Link object.
 * @return mixed Value of the &#039;link_rating&#039; field, false otherwise.
 */
function get_linkrating( $link ) {
	_deprecated_function( __FUNCTION__, &#039;2.1.0&#039;, &#039;sanitize_bookmark_field()&#039; );
	return sanitize_bookmark_field(&#039;link_rating&#039;, $link-&gt;link_rating, $link-&gt;link_id, &#039;display&#039;);
}

/**
 * Gets the name of category by ID.
 *
 * @since 0.71
 * @deprecated 2.1.0 Use get_category()
 * @see get_category()
 *
 * @param int $id The category to get. If no category supplied uses 0
 * @return string
 */
function get_linkcatname($id = 0) {
	_deprecated_function( __FUNCTION__, &#039;2.1.0&#039;, &#039;get_category()&#039; );

	$id = (int) $id;

	if ( empty($id) )
		return &#039;&#039;;

	$cats = wp_get_link_cats($id);

	if ( empty($cats) || ! is_array($cats) )
		return &#039;&#039;;

	$cat_id = (int) $cats[0]; // Take the first cat.

	$cat = get_category($cat_id);
	return $cat-&gt;name;
}

/**
 * Print RSS comment feed link.
 *
 * @since 1.0.1
 * @deprecated 2.5.0 Use post_comments_feed_link()
 * @see post_comments_feed_link()
 *
 * @param string $link_text
 */
function comments_rss_link($link_text = &#039;Comments RSS&#039;) {
	_deprecated_function( __FUNCTION__, &#039;2.5.0&#039;, &#039;post_comments_feed_link()&#039; );
	post_comments_feed_link($link_text);
}

/**
 * Print/Return link to category RSS2 feed.
 *
 * @since 1.2.0
 * @deprecated 2.5.0 Use get_category_feed_link()
 * @see get_category_feed_link()
 *
 * @param bool $display
 * @param int $cat_id
 * @return string
 */
function get_category_rss_link($display = false, $cat_id = 1) {
	_deprecated_function( __FUNCTION__, &#039;2.5.0&#039;, &#039;get_category_feed_link()&#039; );

	$link = get_category_feed_link($cat_id, &#039;rss2&#039;);

	if ( $display )
		echo $link;
	return $link;
}

/**
 * Print/Return link to author RSS feed.
 *
 * @since 1.2.0
 * @deprecated 2.5.0 Use get_author_feed_link()
 * @see get_author_feed_link()
 *
 * @param bool $display
 * @param int $author_id
 * @return string
 */
function get_author_rss_link($display = false, $author_id = 1) {
	_deprecated_function( __FUNCTION__, &#039;2.5.0&#039;, &#039;get_author_feed_link()&#039; );

	$link = get_author_feed_link($author_id);
	if ( $display )
		echo $link;
	return $link;
}

/**
 * Return link to the post RSS feed.
 *
 * @since 1.5.0
 * @deprecated 2.2.0 Use get_post_comments_feed_link()
 * @see get_post_comments_feed_link()
 *
 * @return string
 */
function comments_rss() {
	_deprecated_function( __FUNCTION__, &#039;2.2.0&#039;, &#039;get_post_comments_feed_link()&#039; );
	return esc_url( get_post_comments_feed_link() );
}

/**
 * An alias of wp_create_user().
 *
 * @since 2.0.0
 * @deprecated 2.0.0 Use wp_create_user()
 * @see wp_create_user()
 *
 * @param string $username The user&#039;s username.
 * @param string $password The user&#039;s password.
 * @param string $email    The user&#039;s email.
 * @return int The new user&#039;s ID.
 */
function create_user($username, $password, $email) {
	_deprecated_function( __FUNCTION__, &#039;2.0.0&#039;, &#039;wp_create_user()&#039; );
	return wp_create_user($username, $password, $email);
}

/**
 * Unused function.
 *
 * @deprecated 2.5.0
 */
function gzip_compression() {
	_deprecated_function( __FUNCTION__, &#039;2.5.0&#039; );
	return false;
}

/**
 * Retrieve an array of comment data about comment $comment_id.
 *
 * @since 0.71
 * @deprecated 2.7.0 Use get_comment()
 * @see get_comment()
 *
 * @param int $comment_id The ID of the comment
 * @param int $no_cache Whether to use the cache (cast to bool)
 * @param bool $include_unapproved Whether to include unapproved comments
 * @return array The comment data
 */
function get_commentdata( $comment_id, $no_cache = 0, $include_unapproved = false ) {
	_deprecated_function( __FUNCTION__, &#039;2.7.0&#039;, &#039;get_comment()&#039; );
	return get_comment($comment_id, ARRAY_A);
}

/**
 * Retrieve the category name by the category ID.
 *
 * @since 0.71
 * @deprecated 2.8.0 Use get_cat_name()
 * @see get_cat_name()
 *
 * @param int $cat_id Category ID
 * @return string category name
 */
function get_catname( $cat_id ) {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;get_cat_name()&#039; );
	return get_cat_name( $cat_id );
}

/**
 * Retrieve category children list separated before and after the term IDs.
 *
 * @since 1.2.0
 * @deprecated 2.8.0 Use get_term_children()
 * @see get_term_children()
 *
 * @param int    $id      Category ID to retrieve children.
 * @param string $before  Optional. Prepend before category term ID. Default &#039;/&#039;.
 * @param string $after   Optional. Append after category term ID. Default empty string.
 * @param array  $visited Optional. Category Term IDs that have already been added.
 *                        Default empty array.
 * @return string
 */
function get_category_children( $id, $before = &#039;/&#039;, $after = &#039;&#039;, $visited = array() ) {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;get_term_children()&#039; );
	if ( 0 == $id )
		return &#039;&#039;;

	$chain = &#039;&#039;;
	/** TODO: Consult hierarchy */
	$cat_ids = get_all_category_ids();
	foreach ( (array) $cat_ids as $cat_id ) {
		if ( $cat_id == $id )
			continue;

		$category = get_category( $cat_id );
		if ( is_wp_error( $category ) )
			return $category;
		if ( $category-&gt;parent == $id &amp;&amp; !in_array( $category-&gt;term_id, $visited ) ) {
			$visited[] = $category-&gt;term_id;
			$chain .= $before.$category-&gt;term_id.$after;
			$chain .= get_category_children( $category-&gt;term_id, $before, $after );
		}
	}
	return $chain;
}

/**
 * Retrieves all category IDs.
 *
 * @since 2.0.0
 * @deprecated 4.0.0 Use get_terms()
 * @see get_terms()
 *
 * @link https://developer.wordpress.org/reference/functions/get_all_category_ids/
 *
 * @return int[] List of all of the category IDs.
 */
function get_all_category_ids() {
	_deprecated_function( __FUNCTION__, &#039;4.0.0&#039;, &#039;get_terms()&#039; );

	$cat_ids = get_terms(
		array(
			&#039;taxonomy&#039; =&gt; &#039;category&#039;,
			&#039;fields&#039;   =&gt; &#039;ids&#039;,
			&#039;get&#039;      =&gt; &#039;all&#039;,
		)
	);

	return $cat_ids;
}

/**
 * Retrieve the description of the author of the current post.
 *
 * @since 1.5.0
 * @deprecated 2.8.0 Use get_the_author_meta()
 * @see get_the_author_meta()
 *
 * @return string The author&#039;s description.
 */
function get_the_author_description() {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;get_the_author_meta(\&#039;description\&#039;)&#039; );
	return get_the_author_meta(&#039;description&#039;);
}

/**
 * Display the description of the author of the current post.
 *
 * @since 1.0.0
 * @deprecated 2.8.0 Use the_author_meta()
 * @see the_author_meta()
 */
function the_author_description() {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;the_author_meta(\&#039;description\&#039;)&#039; );
	the_author_meta(&#039;description&#039;);
}

/**
 * Retrieve the login name of the author of the current post.
 *
 * @since 1.5.0
 * @deprecated 2.8.0 Use get_the_author_meta()
 * @see get_the_author_meta()
 *
 * @return string The author&#039;s login name (username).
 */
function get_the_author_login() {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;get_the_author_meta(\&#039;login\&#039;)&#039; );
	return get_the_author_meta(&#039;login&#039;);
}

/**
 * Display the login name of the author of the current post.
 *
 * @since 0.71
 * @deprecated 2.8.0 Use the_author_meta()
 * @see the_author_meta()
 */
function the_author_login() {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;the_author_meta(\&#039;login\&#039;)&#039; );
	the_author_meta(&#039;login&#039;);
}

/**
 * Retrieve the first name of the author of the current post.
 *
 * @since 1.5.0
 * @deprecated 2.8.0 Use get_the_author_meta()
 * @see get_the_author_meta()
 *
 * @return string The author&#039;s first name.
 */
function get_the_author_firstname() {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;get_the_author_meta(\&#039;first_name\&#039;)&#039; );
	return get_the_author_meta(&#039;first_name&#039;);
}

/**
 * Display the first name of the author of the current post.
 *
 * @since 0.71
 * @deprecated 2.8.0 Use the_author_meta()
 * @see the_author_meta()
 */
function the_author_firstname() {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;the_author_meta(\&#039;first_name\&#039;)&#039; );
	the_author_meta(&#039;first_name&#039;);
}

/**
 * Retrieve the last name of the author of the current post.
 *
 * @since 1.5.0
 * @deprecated 2.8.0 Use get_the_author_meta()
 * @see get_the_author_meta()
 *
 * @return string The author&#039;s last name.
 */
function get_the_author_lastname() {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;get_the_author_meta(\&#039;last_name\&#039;)&#039; );
	return get_the_author_meta(&#039;last_name&#039;);
}

/**
 * Display the last name of the author of the current post.
 *
 * @since 0.71
 * @deprecated 2.8.0 Use the_author_meta()
 * @see the_author_meta()
 */
function the_author_lastname() {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;the_author_meta(\&#039;last_name\&#039;)&#039; );
	the_author_meta(&#039;last_name&#039;);
}

/**
 * Retrieve the nickname of the author of the current post.
 *
 * @since 1.5.0
 * @deprecated 2.8.0 Use get_the_author_meta()
 * @see get_the_author_meta()
 *
 * @return string The author&#039;s nickname.
 */
function get_the_author_nickname() {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;get_the_author_meta(\&#039;nickname\&#039;)&#039; );
	return get_the_author_meta(&#039;nickname&#039;);
}

/**
 * Display the nickname of the author of the current post.
 *
 * @since 0.71
 * @deprecated 2.8.0 Use the_author_meta()
 * @see the_author_meta()
 */
function the_author_nickname() {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;the_author_meta(\&#039;nickname\&#039;)&#039; );
	the_author_meta(&#039;nickname&#039;);
}

/**
 * Retrieve the email of the author of the current post.
 *
 * @since 1.5.0
 * @deprecated 2.8.0 Use get_the_author_meta()
 * @see get_the_author_meta()
 *
 * @return string The author&#039;s username.
 */
function get_the_author_email() {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;get_the_author_meta(\&#039;email\&#039;)&#039; );
	return get_the_author_meta(&#039;email&#039;);
}

/**
 * Display the email of the author of the current post.
 *
 * @since 0.71
 * @deprecated 2.8.0 Use the_author_meta()
 * @see the_author_meta()
 */
function the_author_email() {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;the_author_meta(\&#039;email\&#039;)&#039; );
	the_author_meta(&#039;email&#039;);
}

/**
 * Retrieve the ICQ number of the author of the current post.
 *
 * @since 1.5.0
 * @deprecated 2.8.0 Use get_the_author_meta()
 * @see get_the_author_meta()
 *
 * @return string The author&#039;s ICQ number.
 */
function get_the_author_icq() {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;get_the_author_meta(\&#039;icq\&#039;)&#039; );
	return get_the_author_meta(&#039;icq&#039;);
}

/**
 * Display the ICQ number of the author of the current post.
 *
 * @since 0.71
 * @deprecated 2.8.0 Use the_author_meta()
 * @see the_author_meta()
 */
function the_author_icq() {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;the_author_meta(\&#039;icq\&#039;)&#039; );
	the_author_meta(&#039;icq&#039;);
}

/**
 * Retrieve the Yahoo! IM name of the author of the current post.
 *
 * @since 1.5.0
 * @deprecated 2.8.0 Use get_the_author_meta()
 * @see get_the_author_meta()
 *
 * @return string The author&#039;s Yahoo! IM name.
 */
function get_the_author_yim() {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;get_the_author_meta(\&#039;yim\&#039;)&#039; );
	return get_the_author_meta(&#039;yim&#039;);
}

/**
 * Display the Yahoo! IM name of the author of the current post.
 *
 * @since 0.71
 * @deprecated 2.8.0 Use the_author_meta()
 * @see the_author_meta()
 */
function the_author_yim() {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;the_author_meta(\&#039;yim\&#039;)&#039; );
	the_author_meta(&#039;yim&#039;);
}

/**
 * Retrieve the MSN address of the author of the current post.
 *
 * @since 1.5.0
 * @deprecated 2.8.0 Use get_the_author_meta()
 * @see get_the_author_meta()
 *
 * @return string The author&#039;s MSN address.
 */
function get_the_author_msn() {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;get_the_author_meta(\&#039;msn\&#039;)&#039; );
	return get_the_author_meta(&#039;msn&#039;);
}

/**
 * Display the MSN address of the author of the current post.
 *
 * @since 0.71
 * @deprecated 2.8.0 Use the_author_meta()
 * @see the_author_meta()
 */
function the_author_msn() {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;the_author_meta(\&#039;msn\&#039;)&#039; );
	the_author_meta(&#039;msn&#039;);
}

/**
 * Retrieve the AIM address of the author of the current post.
 *
 * @since 1.5.0
 * @deprecated 2.8.0 Use get_the_author_meta()
 * @see get_the_author_meta()
 *
 * @return string The author&#039;s AIM address.
 */
function get_the_author_aim() {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;get_the_author_meta(\&#039;aim\&#039;)&#039; );
	return get_the_author_meta(&#039;aim&#039;);
}

/**
 * Display the AIM address of the author of the current post.
 *
 * @since 0.71
 * @deprecated 2.8.0 Use the_author_meta(&#039;aim&#039;)
 * @see the_author_meta()
 */
function the_author_aim() {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;the_author_meta(\&#039;aim\&#039;)&#039; );
	the_author_meta(&#039;aim&#039;);
}

/**
 * Retrieve the specified author&#039;s preferred display name.
 *
 * @since 1.0.0
 * @deprecated 2.8.0 Use get_the_author_meta()
 * @see get_the_author_meta()
 *
 * @param int $auth_id The ID of the author.
 * @return string The author&#039;s display name.
 */
function get_author_name( $auth_id = false ) {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;get_the_author_meta(\&#039;display_name\&#039;)&#039; );
	return get_the_author_meta(&#039;display_name&#039;, $auth_id);
}

/**
 * Retrieve the URL to the home page of the author of the current post.
 *
 * @since 1.5.0
 * @deprecated 2.8.0 Use get_the_author_meta()
 * @see get_the_author_meta()
 *
 * @return string The URL to the author&#039;s page.
 */
function get_the_author_url() {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;get_the_author_meta(\&#039;url\&#039;)&#039; );
	return get_the_author_meta(&#039;url&#039;);
}

/**
 * Display the URL to the home page of the author of the current post.
 *
 * @since 0.71
 * @deprecated 2.8.0 Use the_author_meta()
 * @see the_author_meta()
 */
function the_author_url() {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;the_author_meta(\&#039;url\&#039;)&#039; );
	the_author_meta(&#039;url&#039;);
}

/**
 * Retrieve the ID of the author of the current post.
 *
 * @since 1.5.0
 * @deprecated 2.8.0 Use get_the_author_meta()
 * @see get_the_author_meta()
 *
 * @return string|int The author&#039;s ID.
 */
function get_the_author_ID() {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;get_the_author_meta(\&#039;ID\&#039;)&#039; );
	return get_the_author_meta(&#039;ID&#039;);
}

/**
 * Display the ID of the author of the current post.
 *
 * @since 0.71
 * @deprecated 2.8.0 Use the_author_meta()
 * @see the_author_meta()
 */
function the_author_ID() {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;the_author_meta(\&#039;ID\&#039;)&#039; );
	the_author_meta(&#039;ID&#039;);
}

/**
 * Display the post content for the feed.
 *
 * For encoding the HTML or the $encode_html parameter, there are three possible values:
 * - &#039;0&#039; will make urls footnotes and use make_url_footnote().
 * - &#039;1&#039; will encode special characters and automatically display all of the content.
 * - &#039;2&#039; will strip all HTML tags from the content.
 *
 * Also note that you cannot set the amount of words and not set the HTML encoding.
 * If that is the case, then the HTML encoding will default to 2, which will strip
 * all HTML tags.
 *
 * To restrict the amount of words of the content, you can use the cut parameter.
 * If the content is less than the amount, then there won&#039;t be any dots added to the end.
 * If there is content left over, then dots will be added and the rest of the content
 * will be removed.
 *
 * @since 0.71
 *
 * @deprecated 2.9.0 Use the_content_feed()
 * @see the_content_feed()
 *
 * @param string $more_link_text Optional. Text to display when more content is available
 *                               but not displayed. Default &#039;(more...)&#039;.
 * @param int    $stripteaser    Optional. Default 0.
 * @param string $more_file      Optional.
 * @param int    $cut            Optional. Amount of words to keep for the content.
 * @param int    $encode_html    Optional. How to encode the content.
 */
function the_content_rss($more_link_text=&#039;(more...)&#039;, $stripteaser=0, $more_file=&#039;&#039;, $cut = 0, $encode_html = 0) {
	_deprecated_function( __FUNCTION__, &#039;2.9.0&#039;, &#039;the_content_feed()&#039; );
	$content = get_the_content($more_link_text, $stripteaser);

	/**
	 * Filters the post content in the context of an RSS feed.
	 *
	 * @since 0.71
	 *
	 * @param string $content Content of the current post.
	 */
	$content = apply_filters(&#039;the_content_rss&#039;, $content);
	if ( $cut &amp;&amp; !$encode_html )
		$encode_html = 2;
	if ( 1== $encode_html ) {
		$content = esc_html($content);
		$cut = 0;
	} elseif ( 0 == $encode_html ) {
		$content = make_url_footnote($content);
	} elseif ( 2 == $encode_html ) {
		$content = strip_tags($content);
	}
	if ( $cut ) {
		$blah = explode(&#039; &#039;, $content);
		if ( count($blah) &gt; $cut ) {
			$k = $cut;
			$use_dotdotdot = 1;
		} else {
			$k = count($blah);
			$use_dotdotdot = 0;
		}

		/** @todo Check performance, might be faster to use array slice instead. */
		for ( $i=0; $i&lt;$k; $i++ )
			$excerpt .= $blah[$i].&#039; &#039;;
		$excerpt .= ($use_dotdotdot) ? &#039;...&#039; : &#039;&#039;;
		$content = $excerpt;
	}
	$content = str_replace(&#039;]]&gt;&#039;, &#039;]]&amp;gt;&#039;, $content);
	echo $content;
}

/**
 * Strip HTML and put links at the bottom of stripped content.
 *
 * Searches for all of the links, strips them out of the content, and places
 * them at the bottom of the content with numbers.
 *
 * @since 0.71
 * @deprecated 2.9.0
 *
 * @param string $content Content to get links.
 * @return string HTML stripped out of content with links at the bottom.
 */
function make_url_footnote( $content ) {
	_deprecated_function( __FUNCTION__, &#039;2.9.0&#039;, &#039;&#039; );
	preg_match_all( &#039;/&lt;a(.+?)href=\&quot;(.+?)\&quot;(.*?)&gt;(.+?)&lt;\/a&gt;/&#039;, $content, $matches );
	$links_summary = &quot;\n&quot;;
	for ( $i = 0, $c = count( $matches[0] ); $i &lt; $c; $i++ ) {
		$link_match = $matches[0][$i];
		$link_number = &#039;[&#039;.($i+1).&#039;]&#039;;
		$link_url = $matches[2][$i];
		$link_text = $matches[4][$i];
		$content = str_replace( $link_match, $link_text . &#039; &#039; . $link_number, $content );
		$link_url = ( ( strtolower( substr( $link_url, 0, 7 ) ) !== &#039;http://&#039; ) &amp;&amp; ( strtolower( substr( $link_url, 0, 8 ) ) !== &#039;https://&#039; ) ) ? get_option( &#039;home&#039; ) . $link_url : $link_url;
		$links_summary .= &quot;\n&quot; . $link_number . &#039; &#039; . $link_url;
	}
	$content  = strip_tags( $content );
	$content .= $links_summary;
	return $content;
}

/**
 * Retrieve translated string with vertical bar context
 *
 * Quite a few times, there will be collisions with similar translatable text
 * found in more than two places but with different translated context.
 *
 * In order to use the separate contexts, the _c() function is used and the
 * translatable string uses a pipe (&#039;|&#039;) which has the context the string is in.
 *
 * When the translated string is returned, it is everything before the pipe, not
 * including the pipe character. If there is no pipe in the translated text then
 * everything is returned.
 *
 * @since 2.2.0
 * @deprecated 2.9.0 Use _x()
 * @see _x()
 *
 * @param string $text Text to translate.
 * @param string $domain Optional. Domain to retrieve the translated text.
 * @return string Translated context string without pipe.
 */
function _c( $text, $domain = &#039;default&#039; ) {
	_deprecated_function( __FUNCTION__, &#039;2.9.0&#039;, &#039;_x()&#039; );
	return before_last_bar( translate( $text, $domain ) );
}

/**
 * Translates $text like translate(), but assumes that the text
 * contains a context after its last vertical bar.
 *
 * @since 2.5.0
 * @deprecated 3.0.0 Use _x()
 * @see _x()
 *
 * @param string $text Text to translate.
 * @param string $domain Domain to retrieve the translated text.
 * @return string Translated text.
 */
function translate_with_context( $text, $domain = &#039;default&#039; ) {
	_deprecated_function( __FUNCTION__, &#039;2.9.0&#039;, &#039;_x()&#039; );
	return before_last_bar( translate( $text, $domain ) );
}

/**
 * Legacy version of _n(), which supports contexts.
 *
 * Strips everything from the translation after the last bar.
 *
 * @since 2.7.0
 * @deprecated 3.0.0 Use _nx()
 * @see _nx()
 *
 * @param string $single The text to be used if the number is singular.
 * @param string $plural The text to be used if the number is plural.
 * @param int    $number The number to compare against to use either the singular or plural form.
 * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
 *                       Default &#039;default&#039;.
 * @return string The translated singular or plural form.
 */
function _nc( $single, $plural, $number, $domain = &#039;default&#039; ) {
	_deprecated_function( __FUNCTION__, &#039;2.9.0&#039;, &#039;_nx()&#039; );
	return before_last_bar( _n( $single, $plural, $number, $domain ) );
}

/**
 * Retrieve the plural or single form based on the amount.
 *
 * @since 1.2.0
 * @deprecated 2.8.0 Use _n()
 * @see _n()
 */
function __ngettext( ...$args ) { // phpcs:ignore PHPCompatibility.FunctionNameRestrictions.ReservedFunctionNames.FunctionDoubleUnderscore
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;_n()&#039; );
	return _n( ...$args );
}

/**
 * Register plural strings in POT file, but don&#039;t translate them.
 *
 * @since 2.5.0
 * @deprecated 2.8.0 Use _n_noop()
 * @see _n_noop()
 */
function __ngettext_noop( ...$args ) { // phpcs:ignore PHPCompatibility.FunctionNameRestrictions.ReservedFunctionNames.FunctionDoubleUnderscore
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;_n_noop()&#039; );
	return _n_noop( ...$args );

}

/**
 * Retrieve all autoload options, or all options if no autoloaded ones exist.
 *
 * @since 1.0.0
 * @deprecated 3.0.0 Use wp_load_alloptions())
 * @see wp_load_alloptions()
 *
 * @return array List of all options.
 */
function get_alloptions() {
	_deprecated_function( __FUNCTION__, &#039;3.0.0&#039;, &#039;wp_load_alloptions()&#039; );
	return wp_load_alloptions();
}

/**
 * Retrieve HTML content of attachment image with link.
 *
 * @since 2.0.0
 * @deprecated 2.5.0 Use wp_get_attachment_link()
 * @see wp_get_attachment_link()
 *
 * @param int   $id       Optional. Post ID.
 * @param bool  $fullsize Optional. Whether to use full size image. Default false.
 * @param array $max_dims Optional. Max image dimensions.
 * @param bool $permalink Optional. Whether to include permalink to image. Default false.
 * @return string
 */
function get_the_attachment_link($id = 0, $fullsize = false, $max_dims = false, $permalink = false) {
	_deprecated_function( __FUNCTION__, &#039;2.5.0&#039;, &#039;wp_get_attachment_link()&#039; );
	$id = (int) $id;
	$_post = get_post($id);

	if ( (&#039;attachment&#039; != $_post-&gt;post_type) || !$url = wp_get_attachment_url($_post-&gt;ID) )
		return __(&#039;Missing Attachment&#039;);

	if ( $permalink )
		$url = get_attachment_link($_post-&gt;ID);

	$post_title = esc_attr($_post-&gt;post_title);

	$innerHTML = get_attachment_innerHTML($_post-&gt;ID, $fullsize, $max_dims);
	return &quot;&lt;a href=&#039;$url&#039; title=&#039;$post_title&#039;&gt;$innerHTML&lt;/a&gt;&quot;;
}

/**
 * Retrieve icon URL and Path.
 *
 * @since 2.1.0
 * @deprecated 2.5.0 Use wp_get_attachment_image_src()
 * @see wp_get_attachment_image_src()
 *
 * @param int  $id       Optional. Post ID.
 * @param bool $fullsize Optional. Whether to have full image. Default false.
 * @return array Icon URL and full path to file, respectively.
 */
function get_attachment_icon_src( $id = 0, $fullsize = false ) {
	_deprecated_function( __FUNCTION__, &#039;2.5.0&#039;, &#039;wp_get_attachment_image_src()&#039; );
	$id = (int) $id;
	if ( !$post = get_post($id) )
		return false;

	$file = get_attached_file( $post-&gt;ID );

	if ( !$fullsize &amp;&amp; $src = wp_get_attachment_thumb_url( $post-&gt;ID ) ) {
		// We have a thumbnail desired, specified and existing.

		$src_file = wp_basename($src);
	} elseif ( wp_attachment_is_image( $post-&gt;ID ) ) {
		// We have an image without a thumbnail.

		$src = wp_get_attachment_url( $post-&gt;ID );
		$src_file = &amp; $file;
	} elseif ( $src = wp_mime_type_icon( $post-&gt;ID, &#039;.svg&#039; ) ) {
		// No thumb, no image. We&#039;ll look for a mime-related icon instead.

		/** This filter is documented in wp-includes/post.php */
		$icon_dir = apply_filters( &#039;icon_dir&#039;, get_template_directory() . &#039;/images&#039; );
		$src_file = $icon_dir . &#039;/&#039; . wp_basename($src);
	}

	if ( !isset($src) || !$src )
		return false;

	return array($src, $src_file);
}

/**
 * Retrieve HTML content of icon attachment image element.
 *
 * @since 2.0.0
 * @deprecated 2.5.0 Use wp_get_attachment_image()
 * @see wp_get_attachment_image()
 *
 * @param int   $id       Optional. Post ID.
 * @param bool  $fullsize Optional. Whether to have full size image. Default false.
 * @param array $max_dims Optional. Dimensions of image.
 * @return string|false HTML content.
 */
function get_attachment_icon( $id = 0, $fullsize = false, $max_dims = false ) {
	_deprecated_function( __FUNCTION__, &#039;2.5.0&#039;, &#039;wp_get_attachment_image()&#039; );
	$id = (int) $id;
	if ( !$post = get_post($id) )
		return false;

	if ( !$src = get_attachment_icon_src( $post-&gt;ID, $fullsize ) )
		return false;

	list($src, $src_file) = $src;

	// Do we need to constrain the image?
	if ( ($max_dims = apply_filters(&#039;attachment_max_dims&#039;, $max_dims)) &amp;&amp; file_exists($src_file) ) {

		$imagesize = wp_getimagesize($src_file);

		if (($imagesize[0] &gt; $max_dims[0]) || $imagesize[1] &gt; $max_dims[1] ) {
			$actual_aspect = $imagesize[0] / $imagesize[1];
			$desired_aspect = $max_dims[0] / $max_dims[1];

			if ( $actual_aspect &gt;= $desired_aspect ) {
				$height = $actual_aspect * $max_dims[0];
				$constraint = &quot;width=&#039;{$max_dims[0]}&#039; &quot;;
				$post-&gt;iconsize = array($max_dims[0], $height);
			} else {
				$width = $max_dims[1] / $actual_aspect;
				$constraint = &quot;height=&#039;{$max_dims[1]}&#039; &quot;;
				$post-&gt;iconsize = array($width, $max_dims[1]);
			}
		} else {
			$post-&gt;iconsize = array($imagesize[0], $imagesize[1]);
			$constraint = &#039;&#039;;
		}
	} else {
		$constraint = &#039;&#039;;
	}

	$post_title = esc_attr($post-&gt;post_title);

	$icon = &quot;&lt;img src=&#039;$src&#039; title=&#039;$post_title&#039; alt=&#039;$post_title&#039; $constraint/&gt;&quot;;

	return apply_filters( &#039;attachment_icon&#039;, $icon, $post-&gt;ID );
}

/**
 * Retrieve HTML content of image element.
 *
 * @since 2.0.0
 * @deprecated 2.5.0 Use wp_get_attachment_image()
 * @see wp_get_attachment_image()
 *
 * @param int   $id       Optional. Post ID.
 * @param bool  $fullsize Optional. Whether to have full size image. Default false.
 * @param array $max_dims Optional. Dimensions of image.
 * @return string|false
 */
function get_attachment_innerHTML($id = 0, $fullsize = false, $max_dims = false) {
	_deprecated_function( __FUNCTION__, &#039;2.5.0&#039;, &#039;wp_get_attachment_image()&#039; );
	$id = (int) $id;
	if ( !$post = get_post($id) )
		return false;

	if ( $innerHTML = get_attachment_icon($post-&gt;ID, $fullsize, $max_dims))
		return $innerHTML;

	$innerHTML = esc_attr($post-&gt;post_title);

	return apply_filters(&#039;attachment_innerHTML&#039;, $innerHTML, $post-&gt;ID);
}

/**
 * Retrieves bookmark data based on ID.
 *
 * @since 2.0.0
 * @deprecated 2.1.0 Use get_bookmark()
 * @see get_bookmark()
 *
 * @param int    $bookmark_id ID of link
 * @param string $output      Optional. Type of output. Accepts OBJECT, ARRAY_N, or ARRAY_A.
 *                            Default OBJECT.
 * @param string $filter      Optional. How to filter the link for output. Accepts &#039;raw&#039;, &#039;edit&#039;,
 *                            &#039;attribute&#039;, &#039;js&#039;, &#039;db&#039;, or &#039;display&#039;. Default &#039;raw&#039;.
 * @return object|array Bookmark object or array, depending on the type specified by `$output`.
 */
function get_link( $bookmark_id, $output = OBJECT, $filter = &#039;raw&#039; ) {
	_deprecated_function( __FUNCTION__, &#039;2.1.0&#039;, &#039;get_bookmark()&#039; );
	return get_bookmark($bookmark_id, $output, $filter);
}

/**
 * Checks and cleans a URL.
 *
 * A number of characters are removed from the URL. If the URL is for displaying
 * (the default behavior) ampersands are also replaced. The &#039;clean_url&#039; filter
 * is applied to the returned cleaned URL.
 *
 * @since 1.2.0
 * @deprecated 3.0.0 Use esc_url()
 * @see esc_url()
 *
 * @param string $url The URL to be cleaned.
 * @param array $protocols Optional. An array of acceptable protocols.
 * @param string $context Optional. How the URL will be used. Default is &#039;display&#039;.
 * @return string The cleaned $url after the {@see &#039;clean_url&#039;} filter is applied.
 */
function clean_url( $url, $protocols = null, $context = &#039;display&#039; ) {
	if ( $context == &#039;db&#039; )
		_deprecated_function( &#039;clean_url( $context = \&#039;db\&#039; )&#039;, &#039;3.0.0&#039;, &#039;sanitize_url()&#039; );
	else
		_deprecated_function( __FUNCTION__, &#039;3.0.0&#039;, &#039;esc_url()&#039; );
	return esc_url( $url, $protocols, $context );
}

/**
 * Escape single quotes, specialchar double quotes, and fix line endings.
 *
 * The filter {@see &#039;js_escape&#039;} is also applied by esc_js().
 *
 * @since 2.0.4
 * @deprecated 2.8.0 Use esc_js()
 * @see esc_js()
 *
 * @param string $text The text to be escaped.
 * @return string Escaped text.
 */
function js_escape( $text ) {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;esc_js()&#039; );
	return esc_js( $text );
}

/**
 * Legacy escaping for HTML blocks.
 *
 * @deprecated 2.8.0 Use esc_html()
 * @see esc_html()
 *
 * @param string       $text          Text to escape.
 * @param string       $quote_style   Unused.
 * @param false|string $charset       Unused.
 * @param false        $double_encode Whether to double encode. Unused.
 * @return string Escaped `$text`.
 */
function wp_specialchars( $text, $quote_style = ENT_NOQUOTES, $charset = false, $double_encode = false ) {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;esc_html()&#039; );
	if ( func_num_args() &gt; 1 ) { // Maintain back-compat for people passing additional arguments.
		return _wp_specialchars( $text, $quote_style, $charset, $double_encode );
	} else {
		return esc_html( $text );
	}
}

/**
 * Escaping for HTML attributes.
 *
 * @since 2.0.6
 * @deprecated 2.8.0 Use esc_attr()
 * @see esc_attr()
 *
 * @param string $text
 * @return string
 */
function attribute_escape( $text ) {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;esc_attr()&#039; );
	return esc_attr( $text );
}

/**
 * Register widget for sidebar with backward compatibility.
 *
 * Allows $name to be an array that accepts either three elements to grab the
 * first element and the third for the name or just uses the first element of
 * the array for the name.
 *
 * Passes to wp_register_sidebar_widget() after argument list and backward
 * compatibility is complete.
 *
 * @since 2.2.0
 * @deprecated 2.8.0 Use wp_register_sidebar_widget()
 * @see wp_register_sidebar_widget()
 *
 * @param string|int $name            Widget ID.
 * @param callable   $output_callback Run when widget is called.
 * @param string     $classname       Optional. Classname widget option. Default empty.
 * @param mixed      ...$params       Widget parameters.
 */
function register_sidebar_widget($name, $output_callback, $classname = &#039;&#039;, ...$params) {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;wp_register_sidebar_widget()&#039; );
	// Compat.
	if ( is_array( $name ) ) {
		if ( count( $name ) === 3 ) {
			$name = sprintf( $name[0], $name[2] );
		} else {
			$name = $name[0];
		}
	}

	$id      = sanitize_title( $name );
	$options = array();
	if ( ! empty( $classname ) &amp;&amp; is_string( $classname ) ) {
		$options[&#039;classname&#039;] = $classname;
	}

	wp_register_sidebar_widget( $id, $name, $output_callback, $options, ...$params );
}

/**
 * Serves as an alias of wp_unregister_sidebar_widget().
 *
 * @since 2.2.0
 * @deprecated 2.8.0 Use wp_unregister_sidebar_widget()
 * @see wp_unregister_sidebar_widget()
 *
 * @param int|string $id Widget ID.
 */
function unregister_sidebar_widget($id) {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;wp_unregister_sidebar_widget()&#039; );
	return wp_unregister_sidebar_widget($id);
}

/**
 * Registers widget control callback for customizing options.
 *
 * Allows $name to be an array that accepts either three elements to grab the
 * first element and the third for the name or just uses the first element of
 * the array for the name.
 *
 * Passes to wp_register_widget_control() after the argument list has
 * been compiled.
 *
 * @since 2.2.0
 * @deprecated 2.8.0 Use wp_register_widget_control()
 * @see wp_register_widget_control()
 *
 * @param int|string $name             Sidebar ID.
 * @param callable   $control_callback Widget control callback to display and process form.
 * @param int        $width            Widget width.
 * @param int        $height           Widget height.
 * @param mixed      ...$params        Widget parameters.
 */
function register_widget_control($name, $control_callback, $width = &#039;&#039;, $height = &#039;&#039;, ...$params) {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;wp_register_widget_control()&#039; );
	// Compat.
	if ( is_array( $name ) ) {
		if ( count( $name ) === 3 ) {
			$name = sprintf( $name[0], $name[2] );
		} else {
			$name = $name[0];
		}
	}

	$id      = sanitize_title( $name );
	$options = array();
	if ( ! empty( $width ) ) {
		$options[&#039;width&#039;] = $width;
	}
	if ( ! empty( $height ) ) {
		$options[&#039;height&#039;] = $height;
	}

	wp_register_widget_control( $id, $name, $control_callback, $options, ...$params );
}

/**
 * Alias of wp_unregister_widget_control().
 *
 * @since 2.2.0
 * @deprecated 2.8.0 Use wp_unregister_widget_control()
 * @see wp_unregister_widget_control()
 *
 * @param int|string $id Widget ID.
 */
function unregister_widget_control($id) {
	_deprecated_function( __FUNCTION__, &#039;2.8.0&#039;, &#039;wp_unregister_widget_control()&#039; );
	return wp_unregister_widget_control($id);
}

/**
 * Remove user meta data.
 *
 * @since 2.0.0
 * @deprecated 3.0.0 Use delete_user_meta()
 * @see delete_user_meta()
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param int $user_id User ID.
 * @param string $meta_key Metadata key.
 * @param mixed $meta_value Optional. Metadata value. Default empty.
 * @return bool True deletion completed and false if user_id is not a number.
 */
function delete_usermeta( $user_id, $meta_key, $meta_value = &#039;&#039; ) {
	_deprecated_function( __FUNCTION__, &#039;3.0.0&#039;, &#039;delete_user_meta()&#039; );
	global $wpdb;
	if ( !is_numeric( $user_id ) )
		return false;
	$meta_key = preg_replace(&#039;|[^a-z0-9_]|i&#039;, &#039;&#039;, $meta_key);

	if ( is_array($meta_value) || is_object($meta_value) )
		$meta_value = serialize($meta_value);
	$meta_value = trim( $meta_value );

	$cur = $wpdb-&gt;get_row( $wpdb-&gt;prepare(&quot;SELECT * FROM $wpdb-&gt;usermeta WHERE user_id = %d AND meta_key = %s&quot;, $user_id, $meta_key) );

	if ( $cur &amp;&amp; $cur-&gt;umeta_id )
		do_action( &#039;delete_usermeta&#039;, $cur-&gt;umeta_id, $user_id, $meta_key, $meta_value );

	if ( ! empty($meta_value) )
		$wpdb-&gt;query( $wpdb-&gt;prepare(&quot;DELETE FROM $wpdb-&gt;usermeta WHERE user_id = %d AND meta_key = %s AND meta_value = %s&quot;, $user_id, $meta_key, $meta_value) );
	else
		$wpdb-&gt;query( $wpdb-&gt;prepare(&quot;DELETE FROM $wpdb-&gt;usermeta WHERE user_id = %d AND meta_key = %s&quot;, $user_id, $meta_key) );

	clean_user_cache( $user_id );
	wp_cache_delete( $user_id, &#039;user_meta&#039; );

	if ( $cur &amp;&amp; $cur-&gt;umeta_id )
		do_action( &#039;deleted_usermeta&#039;, $cur-&gt;umeta_id, $user_id, $meta_key, $meta_value );

	return true;
}

/**
 * Retrieve user metadata.
 *
 * If $user_id is not a number, then the function will fail over with a &#039;false&#039;
 * boolean return value. Other returned values depend on whether there is only
 * one item to be returned, which be that single item type. If there is more
 * than one metadata value, then it will be list of metadata values.
 *
 * @since 2.0.0
 * @deprecated 3.0.0 Use get_user_meta()
 * @see get_user_meta()
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param int $user_id User ID
 * @param string $meta_key Optional. Metadata key. Default empty.
 * @return mixed
 */
function get_usermeta( $user_id, $meta_key = &#039;&#039; ) {
	_deprecated_function( __FUNCTION__, &#039;3.0.0&#039;, &#039;get_user_meta()&#039; );
	global $wpdb;
	$user_id = (int) $user_id;

	if ( !$user_id )
		return false;

	if ( !empty($meta_key) ) {
		$meta_key = preg_replace(&#039;|[^a-z0-9_]|i&#039;, &#039;&#039;, $meta_key);
		$user = wp_cache_get($user_id, &#039;users&#039;);
		// Check the cached user object.
		if ( false !== $user &amp;&amp; isset($user-&gt;$meta_key) )
			$metas = array($user-&gt;$meta_key);
		else
			$metas = $wpdb-&gt;get_col( $wpdb-&gt;prepare(&quot;SELECT meta_value FROM $wpdb-&gt;usermeta WHERE user_id = %d AND meta_key = %s&quot;, $user_id, $meta_key) );
	} else {
		$metas = $wpdb-&gt;get_col( $wpdb-&gt;prepare(&quot;SELECT meta_value FROM $wpdb-&gt;usermeta WHERE user_id = %d&quot;, $user_id) );
	}

	if ( empty($metas) ) {
		if ( empty($meta_key) )
			return array();
		else
			return &#039;&#039;;
	}

	$metas = array_map(&#039;maybe_unserialize&#039;, $metas);

	if ( count($metas) === 1 )
		return $metas[0];
	else
		return $metas;
}

/**
 * Update metadata of user.
 *
 * There is no need to serialize values, they will be serialized if it is
 * needed. The metadata key can only be a string with underscores. All else will
 * be removed.
 *
 * Will remove the metadata, if the meta value is empty.
 *
 * @since 2.0.0
 * @deprecated 3.0.0 Use update_user_meta()
 * @see update_user_meta()
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param int $user_id User ID
 * @param string $meta_key Metadata key.
 * @param mixed $meta_value Metadata value.
 * @return bool True on successful update, false on failure.
 */
function update_usermeta( $user_id, $meta_key, $meta_value ) {
	_deprecated_function( __FUNCTION__, &#039;3.0.0&#039;, &#039;update_user_meta()&#039; );
	global $wpdb;
	if ( !is_numeric( $user_id ) )
		return false;
	$meta_key = preg_replace(&#039;|[^a-z0-9_]|i&#039;, &#039;&#039;, $meta_key);

	/** @todo Might need fix because usermeta data is assumed to be already escaped */
	if ( is_string($meta_value) )
		$meta_value = stripslashes($meta_value);
	$meta_value = maybe_serialize($meta_value);

	if (empty($meta_value)) {
		return delete_usermeta($user_id, $meta_key);
	}

	$cur = $wpdb-&gt;get_row( $wpdb-&gt;prepare(&quot;SELECT * FROM $wpdb-&gt;usermeta WHERE user_id = %d AND meta_key = %s&quot;, $user_id, $meta_key) );

	if ( $cur )
		do_action( &#039;update_usermeta&#039;, $cur-&gt;umeta_id, $user_id, $meta_key, $meta_value );

	if ( !$cur )
		$wpdb-&gt;insert($wpdb-&gt;usermeta, compact(&#039;user_id&#039;, &#039;meta_key&#039;, &#039;meta_value&#039;) );
	elseif ( $cur-&gt;meta_value != $meta_value )
		$wpdb-&gt;update($wpdb-&gt;usermeta, compact(&#039;meta_value&#039;), compact(&#039;user_id&#039;, &#039;meta_key&#039;) );
	else
		return false;

	clean_user_cache( $user_id );
	wp_cache_delete( $user_id, &#039;user_meta&#039; );

	if ( !$cur )
		do_action( &#039;added_usermeta&#039;, $wpdb-&gt;insert_id, $user_id, $meta_key, $meta_value );
	else
		do_action( &#039;updated_usermeta&#039;, $cur-&gt;umeta_id, $user_id, $meta_key, $meta_value );

	return true;
}

/**
 * Get users for the site.
 *
 * For setups that use the multisite feature. Can be used outside of the
 * multisite feature.
 *
 * @since 2.2.0
 * @deprecated 3.1.0 Use get_users()
 * @see get_users()
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param int $id Site ID.
 * @return array List of users that are part of that site ID
 */
function get_users_of_blog( $id = &#039;&#039; ) {
	_deprecated_function( __FUNCTION__, &#039;3.1.0&#039;, &#039;get_users()&#039; );

	global $wpdb;
	if ( empty( $id ) ) {
		$id = get_current_blog_id();
	}
	$blog_prefix = $wpdb-&gt;get_blog_prefix($id);
	$users = $wpdb-&gt;get_results( &quot;SELECT user_id, user_id AS ID, user_login, display_name, user_email, meta_value FROM $wpdb-&gt;users, $wpdb-&gt;usermeta WHERE {$wpdb-&gt;users}.ID = {$wpdb-&gt;usermeta}.user_id AND meta_key = &#039;{$blog_prefix}capabilities&#039; ORDER BY {$wpdb-&gt;usermeta}.user_id&quot; );
	return $users;
}

/**
 * Enable/disable automatic general feed link outputting.
 *
 * @since 2.8.0
 * @deprecated 3.0.0 Use add_theme_support()
 * @see add_theme_support()
 *
 * @param bool $add Optional. Add or remove links. Default true.
 */
function automatic_feed_links( $add = true ) {
	_deprecated_function( __FUNCTION__, &#039;3.0.0&#039;, &quot;add_theme_support( &#039;automatic-feed-links&#039; )&quot; );

	if ( $add )
		add_theme_support( &#039;automatic-feed-links&#039; );
	else
		remove_action( &#039;wp_head&#039;, &#039;feed_links_extra&#039;, 3 ); // Just do this yourself in 3.0+.
}

/**
 * Retrieve user data based on field.
 *
 * @since 1.5.0
 * @deprecated 3.0.0 Use get_the_author_meta()
 * @see get_the_author_meta()
 *
 * @param string    $field User meta field.
 * @param false|int $user  Optional. User ID to retrieve the field for. Default false (current user).
 * @return string The author&#039;s field from the current author&#039;s DB object.
 */
function get_profile( $field, $user = false ) {
	_deprecated_function( __FUNCTION__, &#039;3.0.0&#039;, &#039;get_the_author_meta()&#039; );
	if ( $user ) {
		$user = get_user_by( &#039;login&#039;, $user );
		$user = $user-&gt;ID;
	}
	return get_the_author_meta( $field, $user );
}

/**
 * Retrieves the number of posts a user has written.
 *
 * @since 0.71
 * @deprecated 3.0.0 Use count_user_posts()
 * @see count_user_posts()
 *
 * @param int $userid User to count posts for.
 * @return int Number of posts the given user has written.
 */
function get_usernumposts( $userid ) {
	_deprecated_function( __FUNCTION__, &#039;3.0.0&#039;, &#039;count_user_posts()&#039; );
	return count_user_posts( $userid );
}

/**
 * Callback used to change %uXXXX to &amp;#YYY; syntax
 *
 * @since 2.8.0
 * @access private
 * @deprecated 3.0.0
 *
 * @param array $matches Single Match
 * @return string An HTML entity
 */
function funky_javascript_callback($matches) {
	return &quot;&amp;#&quot;.base_convert($matches[1],16,10).&quot;;&quot;;
}

/**
 * Fixes JavaScript bugs in browsers.
 *
 * Converts unicode characters to HTML numbered entities.
 *
 * @since 1.5.0
 * @deprecated 3.0.0
 *
 * @global $is_macIE
 * @global $is_winIE
 *
 * @param string $text Text to be made safe.
 * @return string Fixed text.
 */
function funky_javascript_fix($text) {
	_deprecated_function( __FUNCTION__, &#039;3.0.0&#039; );
	// Fixes for browsers&#039; JavaScript bugs.
	global $is_macIE, $is_winIE;

	if ( $is_winIE || $is_macIE )
		$text =  preg_replace_callback(&quot;/\%u([0-9A-F]{4,4})/&quot;,
					&quot;funky_javascript_callback&quot;,
					$text);

	return $text;
}

/**
 * Checks that the taxonomy name exists.
 *
 * @since 2.3.0
 * @deprecated 3.0.0 Use taxonomy_exists()
 * @see taxonomy_exists()
 *
 * @param string $taxonomy Name of taxonomy object
 * @return bool Whether the taxonomy exists.
 */
function is_taxonomy( $taxonomy ) {
	_deprecated_function( __FUNCTION__, &#039;3.0.0&#039;, &#039;taxonomy_exists()&#039; );
	return taxonomy_exists( $taxonomy );
}

/**
 * Check if Term exists.
 *
 * @since 2.3.0
 * @deprecated 3.0.0 Use term_exists()
 * @see term_exists()
 *
 * @param int|string $term The term to check
 * @param string $taxonomy The taxonomy name to use
 * @param int $parent ID of parent term under which to confine the exists search.
 * @return mixed Get the term ID or term object, if exists.
 */
function is_term( $term, $taxonomy = &#039;&#039;, $parent = 0 ) {
	_deprecated_function( __FUNCTION__, &#039;3.0.0&#039;, &#039;term_exists()&#039; );
	return term_exists( $term, $taxonomy, $parent );
}

/**
 * Determines whether the current admin page is generated by a plugin.
 *
 * Use global $plugin_page and/or get_plugin_page_hookname() hooks.
 *
 * For more information on this and similar theme functions, check out
 * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
 * Conditional Tags} article in the Theme Developer Handbook.
 *
 * @since 1.5.0
 * @deprecated 3.1.0
 *
 * @global $plugin_page
 *
 * @return bool
 */
function is_plugin_page() {
	_deprecated_function( __FUNCTION__, &#039;3.1.0&#039; );

	global $plugin_page;

	if ( isset($plugin_page) )
		return true;

	return false;
}

/**
 * Update the categories cache.
 *
 * This function does not appear to be used anymore or does not appear to be
 * needed. It might be a legacy function left over from when there was a need
 * for updating the category cache.
 *
 * @since 1.5.0
 * @deprecated 3.1.0
 *
 * @return bool Always return True
 */
function update_category_cache() {
	_deprecated_function( __FUNCTION__, &#039;3.1.0&#039; );

	return true;
}

/**
 * Check for PHP timezone support
 *
 * @since 2.9.0
 * @deprecated 3.2.0
 *
 * @return bool
 */
function wp_timezone_supported() {
	_deprecated_function( __FUNCTION__, &#039;3.2.0&#039; );

	return true;
}

/**
 * Displays an editor: TinyMCE, HTML, or both.
 *
 * @since 2.1.0
 * @deprecated 3.3.0 Use wp_editor()
 * @see wp_editor()
 *
 * @param string $content       Textarea content.
 * @param string $id            Optional. HTML ID attribute value. Default &#039;content&#039;.
 * @param string $prev_id       Optional. Unused.
 * @param bool   $media_buttons Optional. Whether to display media buttons. Default true.
 * @param int    $tab_index     Optional. Unused.
 * @param bool   $extended      Optional. Unused.
 */
function the_editor($content, $id = &#039;content&#039;, $prev_id = &#039;title&#039;, $media_buttons = true, $tab_index = 2, $extended = true) {
	_deprecated_function( __FUNCTION__, &#039;3.3.0&#039;, &#039;wp_editor()&#039; );

	wp_editor( $content, $id, array( &#039;media_buttons&#039; =&gt; $media_buttons ) );
}

/**
 * Perform the query to get the $metavalues array(s) needed by _fill_user and _fill_many_users
 *
 * @since 3.0.0
 * @deprecated 3.3.0
 *
 * @param array $ids User ID numbers list.
 * @return array of arrays. The array is indexed by user_id, containing $metavalues object arrays.
 */
function get_user_metavalues($ids) {
	_deprecated_function( __FUNCTION__, &#039;3.3.0&#039; );

	$objects = array();

	$ids = array_map(&#039;intval&#039;, $ids);
	foreach ( $ids as $id )
		$objects[$id] = array();

	$metas = update_meta_cache(&#039;user&#039;, $ids);

	foreach ( $metas as $id =&gt; $meta ) {
		foreach ( $meta as $key =&gt; $metavalues ) {
			foreach ( $metavalues as $value ) {
				$objects[$id][] = (object)array( &#039;user_id&#039; =&gt; $id, &#039;meta_key&#039; =&gt; $key, &#039;meta_value&#039; =&gt; $value);
			}
		}
	}

	return $objects;
}

/**
 * Sanitize every user field.
 *
 * If the context is &#039;raw&#039;, then the user object or array will get minimal sanitization of the int fields.
 *
 * @since 2.3.0
 * @deprecated 3.3.0
 *
 * @param object|array $user    The user object or array.
 * @param string       $context Optional. How to sanitize user fields. Default &#039;display&#039;.
 * @return object|array The now sanitized user object or array (will be the same type as $user).
 */
function sanitize_user_object($user, $context = &#039;display&#039;) {
	_deprecated_function( __FUNCTION__, &#039;3.3.0&#039; );

	if ( is_object($user) ) {
		if ( !isset($user-&gt;ID) )
			$user-&gt;ID = 0;
		if ( ! ( $user instanceof WP_User ) ) {
			$vars = get_object_vars($user);
			foreach ( array_keys($vars) as $field ) {
				if ( is_string($user-&gt;$field) || is_numeric($user-&gt;$field) )
					$user-&gt;$field = sanitize_user_field($field, $user-&gt;$field, $user-&gt;ID, $context);
			}
		}
		$user-&gt;filter = $context;
	} else {
		if ( !isset($user[&#039;ID&#039;]) )
			$user[&#039;ID&#039;] = 0;
		foreach ( array_keys($user) as $field )
			$user[$field] = sanitize_user_field($field, $user[$field], $user[&#039;ID&#039;], $context);
		$user[&#039;filter&#039;] = $context;
	}

	return $user;
}

/**
 * Get boundary post relational link.
 *
 * Can either be start or end post relational link.
 *
 * @since 2.8.0
 * @deprecated 3.3.0
 *
 * @param string $title               Optional. Link title format. Default &#039;%title&#039;.
 * @param bool   $in_same_cat         Optional. Whether link should be in a same category.
 *                                    Default false.
 * @param string $excluded_categories Optional. Excluded categories IDs. Default empty.
 * @param bool   $start               Optional. Whether to display link to first or last post.
 *                                    Default true.
 * @return string
 */
function get_boundary_post_rel_link($title = &#039;%title&#039;, $in_same_cat = false, $excluded_categories = &#039;&#039;, $start = true) {
	_deprecated_function( __FUNCTION__, &#039;3.3.0&#039; );

	$posts = get_boundary_post($in_same_cat, $excluded_categories, $start);
	// If there is no post, stop.
	if ( empty($posts) )
		return;

	// Even though we limited get_posts() to return only 1 item it still returns an array of objects.
	$post = $posts[0];

	if ( empty($post-&gt;post_title) )
		$post-&gt;post_title = $start ? __(&#039;First Post&#039;) : __(&#039;Last Post&#039;);

	$date = mysql2date(get_option(&#039;date_format&#039;), $post-&gt;post_date);

	$title = str_replace(&#039;%title&#039;, $post-&gt;post_title, $title);
	$title = str_replace(&#039;%date&#039;, $date, $title);
	$title = apply_filters(&#039;the_title&#039;, $title, $post-&gt;ID);

	$link = $start ? &quot;&lt;link rel=&#039;start&#039; title=&#039;&quot; : &quot;&lt;link rel=&#039;end&#039; title=&#039;&quot;;
	$link .= esc_attr($title);
	$link .= &quot;&#039; href=&#039;&quot; . get_permalink($post) . &quot;&#039; /&gt;\n&quot;;

	$boundary = $start ? &#039;start&#039; : &#039;end&#039;;
	return apply_filters( &quot;{$boundary}_post_rel_link&quot;, $link );
}

/**
 * Display relational link for the first post.
 *
 * @since 2.8.0
 * @deprecated 3.3.0
 *
 * @param string $title Optional. Link title format.
 * @param bool $in_same_cat Optional. Whether link should be in a same category.
 * @param string $excluded_categories Optional. Excluded categories IDs.
 */
function start_post_rel_link($title = &#039;%title&#039;, $in_same_cat = false, $excluded_categories = &#039;&#039;) {
	_deprecated_function( __FUNCTION__, &#039;3.3.0&#039; );

	echo get_boundary_post_rel_link($title, $in_same_cat, $excluded_categories, true);
}

/**
 * Get site index relational link.
 *
 * @since 2.8.0
 * @deprecated 3.3.0
 *
 * @return string
 */
function get_index_rel_link() {
	_deprecated_function( __FUNCTION__, &#039;3.3.0&#039; );

	$link = &quot;&lt;link rel=&#039;index&#039; title=&#039;&quot; . esc_attr( get_bloginfo( &#039;name&#039;, &#039;display&#039; ) ) . &quot;&#039; href=&#039;&quot; . esc_url( user_trailingslashit( get_bloginfo( &#039;url&#039;, &#039;display&#039; ) ) ) . &quot;&#039; /&gt;\n&quot;;
	return apply_filters( &quot;index_rel_link&quot;, $link );
}

/**
 * Display relational link for the site index.
 *
 * @since 2.8.0
 * @deprecated 3.3.0
 */
function index_rel_link() {
	_deprecated_function( __FUNCTION__, &#039;3.3.0&#039; );

	echo get_index_rel_link();
}

/**
 * Get parent post relational link.
 *
 * @since 2.8.0
 * @deprecated 3.3.0
 *
 * @global WP_Post $post Global post object.
 *
 * @param string $title Optional. Link title format. Default &#039;%title&#039;.
 * @return string
 */
function get_parent_post_rel_link( $title = &#039;%title&#039; ) {
	_deprecated_function( __FUNCTION__, &#039;3.3.0&#039; );

	if ( ! empty( $GLOBALS[&#039;post&#039;] ) &amp;&amp; ! empty( $GLOBALS[&#039;post&#039;]-&gt;post_parent ) )
		$post = get_post($GLOBALS[&#039;post&#039;]-&gt;post_parent);

	if ( empty($post) )
		return;

	$date = mysql2date(get_option(&#039;date_format&#039;), $post-&gt;post_date);

	$title = str_replace(&#039;%title&#039;, $post-&gt;post_title, $title);
	$title = str_replace(&#039;%date&#039;, $date, $title);
	$title = apply_filters(&#039;the_title&#039;, $title, $post-&gt;ID);

	$link = &quot;&lt;link rel=&#039;up&#039; title=&#039;&quot;;
	$link .= esc_attr( $title );
	$link .= &quot;&#039; href=&#039;&quot; . get_permalink($post) . &quot;&#039; /&gt;\n&quot;;

	return apply_filters( &quot;parent_post_rel_link&quot;, $link );
}

/**
 * Display relational link for parent item
 *
 * @since 2.8.0
 * @deprecated 3.3.0
 *
 * @param string $title Optional. Link title format. Default &#039;%title&#039;.
 */
function parent_post_rel_link( $title = &#039;%title&#039; ) {
	_deprecated_function( __FUNCTION__, &#039;3.3.0&#039; );

	echo get_parent_post_rel_link($title);
}

/**
 * Add the &quot;Dashboard&quot;/&quot;Visit Site&quot; menu.
 *
 * @since 3.2.0
 * @deprecated 3.3.0
 *
 * @param WP_Admin_Bar $wp_admin_bar WP_Admin_Bar instance.
 */
function wp_admin_bar_dashboard_view_site_menu( $wp_admin_bar ) {
	_deprecated_function( __FUNCTION__, &#039;3.3.0&#039; );

	$user_id = get_current_user_id();

	if ( 0 != $user_id ) {
		if ( is_admin() )
			$wp_admin_bar-&gt;add_menu( array( &#039;id&#039; =&gt; &#039;view-site&#039;, &#039;title&#039; =&gt; __( &#039;Visit Site&#039; ), &#039;href&#039; =&gt; home_url() ) );
		elseif ( is_multisite() )
			$wp_admin_bar-&gt;add_menu( array( &#039;id&#039; =&gt; &#039;dashboard&#039;, &#039;title&#039; =&gt; __( &#039;Dashboard&#039; ), &#039;href&#039; =&gt; get_dashboard_url( $user_id ) ) );
		else
			$wp_admin_bar-&gt;add_menu( array( &#039;id&#039; =&gt; &#039;dashboard&#039;, &#039;title&#039; =&gt; __( &#039;Dashboard&#039; ), &#039;href&#039; =&gt; admin_url() ) );
	}
}

/**
 * Checks if the current user belong to a given site.
 *
 * @since MU (3.0.0)
 * @deprecated 3.3.0 Use is_user_member_of_blog()
 * @see is_user_member_of_blog()
 *
 * @param int $blog_id Site ID
 * @return bool True if the current users belong to $blog_id, false if not.
 */
function is_blog_user( $blog_id = 0 ) {
	_deprecated_function( __FUNCTION__, &#039;3.3.0&#039;, &#039;is_user_member_of_blog()&#039; );

	return is_user_member_of_blog( get_current_user_id(), $blog_id );
}

/**
 * Open the file handle for debugging.
 *
 * @since 0.71
 * @deprecated 3.4.0 Use error_log()
 * @see error_log()
 *
 * @link https://www.php.net/manual/en/function.error-log.php
 *
 * @param string $filename File name.
 * @param string $mode     Type of access you required to the stream.
 * @return false Always false.
 */
function debug_fopen( $filename, $mode ) {
	_deprecated_function( __FUNCTION__, &#039;3.4.0&#039;, &#039;error_log()&#039; );
	return false;
}

/**
 * Write contents to the file used for debugging.
 *
 * @since 0.71
 * @deprecated 3.4.0 Use error_log()
 * @see error_log()
 *
 * @link https://www.php.net/manual/en/function.error-log.php
 *
 * @param mixed  $fp      Unused.
 * @param string $message Message to log.
 */
function debug_fwrite( $fp, $message ) {
	_deprecated_function( __FUNCTION__, &#039;3.4.0&#039;, &#039;error_log()&#039; );
	if ( ! empty( $GLOBALS[&#039;debug&#039;] ) )
		error_log( $message );
}

/**
 * Close the debugging file handle.
 *
 * @since 0.71
 * @deprecated 3.4.0 Use error_log()
 * @see error_log()
 *
 * @link https://www.php.net/manual/en/function.error-log.php
 *
 * @param mixed $fp Unused.
 */
function debug_fclose( $fp ) {
	_deprecated_function( __FUNCTION__, &#039;3.4.0&#039;, &#039;error_log()&#039; );
}

/**
 * Retrieve list of themes with theme data in theme directory.
 *
 * The theme is broken, if it doesn&#039;t have a parent theme and is missing either
 * style.css and, or index.php. If the theme has a parent theme then it is
 * broken, if it is missing style.css; index.php is optional.
 *
 * @since 1.5.0
 * @deprecated 3.4.0 Use wp_get_themes()
 * @see wp_get_themes()
 *
 * @return array Theme list with theme data.
 */
function get_themes() {
	_deprecated_function( __FUNCTION__, &#039;3.4.0&#039;, &#039;wp_get_themes()&#039; );

	global $wp_themes;
	if ( isset( $wp_themes ) )
		return $wp_themes;

	$themes = wp_get_themes();
	$wp_themes = array();

	foreach ( $themes as $theme ) {
		$name = $theme-&gt;get(&#039;Name&#039;);
		if ( isset( $wp_themes[ $name ] ) )
			$wp_themes[ $name . &#039;/&#039; . $theme-&gt;get_stylesheet() ] = $theme;
		else
			$wp_themes[ $name ] = $theme;
	}

	return $wp_themes;
}

/**
 * Retrieve theme data.
 *
 * @since 1.5.0
 * @deprecated 3.4.0 Use wp_get_theme()
 * @see wp_get_theme()
 *
 * @param string $theme Theme name.
 * @return array|null Null, if theme name does not exist. Theme data, if exists.
 */
function get_theme( $theme ) {
	_deprecated_function( __FUNCTION__, &#039;3.4.0&#039;, &#039;wp_get_theme( $stylesheet )&#039; );

	$themes = get_themes();
	if ( is_array( $themes ) &amp;&amp; array_key_exists( $theme, $themes ) )
		return $themes[ $theme ];
	return null;
}

/**
 * Retrieve current theme name.
 *
 * @since 1.5.0
 * @deprecated 3.4.0 Use wp_get_theme()
 * @see wp_get_theme()
 *
 * @return string
 */
function get_current_theme() {
	_deprecated_function( __FUNCTION__, &#039;3.4.0&#039;, &#039;wp_get_theme()&#039; );

	if ( $theme = get_option( &#039;current_theme&#039; ) )
		return $theme;

	return wp_get_theme()-&gt;get(&#039;Name&#039;);
}

/**
 * Accepts matches array from preg_replace_callback in wpautop() or a string.
 *
 * Ensures that the contents of a `&lt;pre&gt;...&lt;/pre&gt;` HTML block are not
 * converted into paragraphs or line breaks.
 *
 * @since 1.2.0
 * @deprecated 3.4.0
 *
 * @param array|string $matches The array or string
 * @return string The pre block without paragraph/line break conversion.
 */
function clean_pre($matches) {
	_deprecated_function( __FUNCTION__, &#039;3.4.0&#039; );

	if ( is_array($matches) )
		$text = $matches[1] . $matches[2] . &quot;&lt;/pre&gt;&quot;;
	else
		$text = $matches;

	$text = str_replace(array(&#039;&lt;br /&gt;&#039;, &#039;&lt;br/&gt;&#039;, &#039;&lt;br&gt;&#039;), array(&#039;&#039;, &#039;&#039;, &#039;&#039;), $text);
	$text = str_replace(&#039;&lt;p&gt;&#039;, &quot;\n&quot;, $text);
	$text = str_replace(&#039;&lt;/p&gt;&#039;, &#039;&#039;, $text);

	return $text;
}


/**
 * Add callbacks for image header display.
 *
 * @since 2.1.0
 * @deprecated 3.4.0 Use add_theme_support()
 * @see add_theme_support()
 *
 * @param callable $wp_head_callback Call on the {@see &#039;wp_head&#039;} action.
 * @param callable $admin_head_callback Call on custom header administration screen.
 * @param callable $admin_preview_callback Output a custom header image div on the custom header administration screen. Optional.
 */
function add_custom_image_header( $wp_head_callback, $admin_head_callback, $admin_preview_callback = &#039;&#039; ) {
	_deprecated_function( __FUNCTION__, &#039;3.4.0&#039;, &#039;add_theme_support( \&#039;custom-header\&#039;, $args )&#039; );
	$args = array(
		&#039;wp-head-callback&#039;    =&gt; $wp_head_callback,
		&#039;admin-head-callback&#039; =&gt; $admin_head_callback,
	);
	if ( $admin_preview_callback )
		$args[&#039;admin-preview-callback&#039;] = $admin_preview_callback;
	return add_theme_support( &#039;custom-header&#039;, $args );
}

/**
 * Remove image header support.
 *
 * @since 3.1.0
 * @deprecated 3.4.0 Use remove_theme_support()
 * @see remove_theme_support()
 *
 * @return null|bool Whether support was removed.
 */
function remove_custom_image_header() {
	_deprecated_function( __FUNCTION__, &#039;3.4.0&#039;, &#039;remove_theme_support( \&#039;custom-header\&#039; )&#039; );
	return remove_theme_support( &#039;custom-header&#039; );
}

/**
 * Add callbacks for background image display.
 *
 * @since 3.0.0
 * @deprecated 3.4.0 Use add_theme_support()
 * @see add_theme_support()
 *
 * @param callable $wp_head_callback Call on the {@see &#039;wp_head&#039;} action.
 * @param callable $admin_head_callback Call on custom background administration screen.
 * @param callable $admin_preview_callback Output a custom background image div on the custom background administration screen. Optional.
 */
function add_custom_background( $wp_head_callback = &#039;&#039;, $admin_head_callback = &#039;&#039;, $admin_preview_callback = &#039;&#039; ) {
	_deprecated_function( __FUNCTION__, &#039;3.4.0&#039;, &#039;add_theme_support( \&#039;custom-background\&#039;, $args )&#039; );
	$args = array();
	if ( $wp_head_callback )
		$args[&#039;wp-head-callback&#039;] = $wp_head_callback;
	if ( $admin_head_callback )
		$args[&#039;admin-head-callback&#039;] = $admin_head_callback;
	if ( $admin_preview_callback )
		$args[&#039;admin-preview-callback&#039;] = $admin_preview_callback;
	return add_theme_support( &#039;custom-background&#039;, $args );
}

/**
 * Remove custom background support.
 *
 * @since 3.1.0
 * @deprecated 3.4.0 Use add_custom_background()
 * @see add_custom_background()
 *
 * @return null|bool Whether support was removed.
 */
function remove_custom_background() {
	_deprecated_function( __FUNCTION__, &#039;3.4.0&#039;, &#039;remove_theme_support( \&#039;custom-background\&#039; )&#039; );
	return remove_theme_support( &#039;custom-background&#039; );
}

/**
 * Retrieve theme data from parsed theme file.
 *
 * @since 1.5.0
 * @deprecated 3.4.0 Use wp_get_theme()
 * @see wp_get_theme()
 *
 * @param string $theme_file Theme file path.
 * @return array Theme data.
 */
function get_theme_data( $theme_file ) {
	_deprecated_function( __FUNCTION__, &#039;3.4.0&#039;, &#039;wp_get_theme()&#039; );
	$theme = new WP_Theme( wp_basename( dirname( $theme_file ) ), dirname( dirname( $theme_file ) ) );

	$theme_data = array(
		&#039;Name&#039; =&gt; $theme-&gt;get(&#039;Name&#039;),
		&#039;URI&#039; =&gt; $theme-&gt;display(&#039;ThemeURI&#039;, true, false),
		&#039;Description&#039; =&gt; $theme-&gt;display(&#039;Description&#039;, true, false),
		&#039;Author&#039; =&gt; $theme-&gt;display(&#039;Author&#039;, true, false),
		&#039;AuthorURI&#039; =&gt; $theme-&gt;display(&#039;AuthorURI&#039;, true, false),
		&#039;Version&#039; =&gt; $theme-&gt;get(&#039;Version&#039;),
		&#039;Template&#039; =&gt; $theme-&gt;get(&#039;Template&#039;),
		&#039;Status&#039; =&gt; $theme-&gt;get(&#039;Status&#039;),
		&#039;Tags&#039; =&gt; $theme-&gt;get(&#039;Tags&#039;),
		&#039;Title&#039; =&gt; $theme-&gt;get(&#039;Name&#039;),
		&#039;AuthorName&#039; =&gt; $theme-&gt;get(&#039;Author&#039;),
	);

	foreach ( apply_filters( &#039;extra_theme_headers&#039;, array() ) as $extra_header ) {
		if ( ! isset( $theme_data[ $extra_header ] ) )
			$theme_data[ $extra_header ] = $theme-&gt;get( $extra_header );
	}

	return $theme_data;
}

/**
 * Alias of update_post_cache().
 *
 * @see update_post_cache() Posts and pages are the same, alias is intentional
 *
 * @since 1.5.1
 * @deprecated 3.4.0 Use update_post_cache()
 * @see update_post_cache()
 *
 * @param array $pages list of page objects
 */
function update_page_cache( &amp;$pages ) {
	_deprecated_function( __FUNCTION__, &#039;3.4.0&#039;, &#039;update_post_cache()&#039; );

	update_post_cache( $pages );
}

/**
 * Will clean the page in the cache.
 *
 * Clean (read: delete) page from cache that matches $id. Will also clean cache
 * associated with &#039;all_page_ids&#039; and &#039;get_pages&#039;.
 *
 * @since 2.0.0
 * @deprecated 3.4.0 Use clean_post_cache
 * @see clean_post_cache()
 *
 * @param int $id Page ID to clean
 */
function clean_page_cache( $id ) {
	_deprecated_function( __FUNCTION__, &#039;3.4.0&#039;, &#039;clean_post_cache()&#039; );

	clean_post_cache( $id );
}

/**
 * Retrieve nonce action &quot;Are you sure&quot; message.
 *
 * Deprecated in 3.4.1 and 3.5.0. Backported to 3.3.3.
 *
 * @since 2.0.4
 * @deprecated 3.4.1 Use wp_nonce_ays()
 * @see wp_nonce_ays()
 *
 * @param string $action Nonce action.
 * @return string Are you sure message.
 */
function wp_explain_nonce( $action ) {
	_deprecated_function( __FUNCTION__, &#039;3.4.1&#039;, &#039;wp_nonce_ays()&#039; );
	return __( &#039;Are you sure you want to do this?&#039; );
}

/**
 * Display &quot;sticky&quot; CSS class, if a post is sticky.
 *
 * @since 2.7.0
 * @deprecated 3.5.0 Use post_class()
 * @see post_class()
 *
 * @param int $post_id An optional post ID.
 */
function sticky_class( $post_id = null ) {
	_deprecated_function( __FUNCTION__, &#039;3.5.0&#039;, &#039;post_class()&#039; );
	if ( is_sticky( $post_id ) )
		echo &#039; sticky&#039;;
}

/**
 * Retrieve post ancestors.
 *
 * This is no longer needed as WP_Post lazy-loads the ancestors
 * property with get_post_ancestors().
 *
 * @since 2.3.4
 * @deprecated 3.5.0 Use get_post_ancestors()
 * @see get_post_ancestors()
 *
 * @param WP_Post $post Post object, passed by reference (unused).
 */
function _get_post_ancestors( &amp;$post ) {
	_deprecated_function( __FUNCTION__, &#039;3.5.0&#039; );
}

/**
 * Load an image from a string, if PHP supports it.
 *
 * @since 2.1.0
 * @deprecated 3.5.0 Use wp_get_image_editor()
 * @see wp_get_image_editor()
 *
 * @param string $file Filename of the image to load.
 * @return resource|GdImage|string The resulting image resource or GdImage instance on success,
 *                                 error string on failure.
 */
function wp_load_image( $file ) {
	_deprecated_function( __FUNCTION__, &#039;3.5.0&#039;, &#039;wp_get_image_editor()&#039; );

	if ( is_numeric( $file ) )
		$file = get_attached_file( $file );

	if ( ! is_file( $file ) ) {
		/* translators: %s: File name. */
		return sprintf( __( &#039;File &amp;#8220;%s&amp;#8221; does not exist?&#039; ), $file );
	}

	if ( ! function_exists(&#039;imagecreatefromstring&#039;) )
		return __(&#039;The GD image library is not installed.&#039;);

	// Set artificially high because GD uses uncompressed images in memory.
	wp_raise_memory_limit( &#039;image&#039; );

	$image = imagecreatefromstring( file_get_contents( $file ) );

	if ( ! is_gd_image( $image ) ) {
		/* translators: %s: File name. */
		return sprintf( __( &#039;File &amp;#8220;%s&amp;#8221; is not an image.&#039; ), $file );
	}

	return $image;
}

/**
 * Scale down an image to fit a particular size and save a new copy of the image.
 *
 * The PNG transparency will be preserved using the function, as well as the
 * image type. If the file going in is PNG, then the resized image is going to
 * be PNG. The only supported image types are PNG, GIF, and JPEG.
 *
 * Some functionality requires API to exist, so some PHP version may lose out
 * support. This is not the fault of WordPress (where functionality is
 * downgraded, not actual defects), but of your PHP version.
 *
 * @since 2.5.0
 * @deprecated 3.5.0 Use wp_get_image_editor()
 * @see wp_get_image_editor()
 *
 * @param string $file         Image file path.
 * @param int    $max_w        Maximum width to resize to.
 * @param int    $max_h        Maximum height to resize to.
 * @param bool   $crop         Optional. Whether to crop image or resize. Default false.
 * @param string $suffix       Optional. File suffix. Default null.
 * @param string $dest_path    Optional. New image file path. Default null.
 * @param int    $jpeg_quality Optional. Image quality percentage. Default 90.
 * @return mixed WP_Error on failure. String with new destination path.
 */
function image_resize( $file, $max_w, $max_h, $crop = false, $suffix = null, $dest_path = null, $jpeg_quality = 90 ) {
	_deprecated_function( __FUNCTION__, &#039;3.5.0&#039;, &#039;wp_get_image_editor()&#039; );

	$editor = wp_get_image_editor( $file );
	if ( is_wp_error( $editor ) )
		return $editor;
	$editor-&gt;set_quality( $jpeg_quality );

	$resized = $editor-&gt;resize( $max_w, $max_h, $crop );
	if ( is_wp_error( $resized ) )
		return $resized;

	$dest_file = $editor-&gt;generate_filename( $suffix, $dest_path );
	$saved = $editor-&gt;save( $dest_file );

	if ( is_wp_error( $saved ) )
		return $saved;

	return $dest_file;
}

/**
 * Retrieve a single post, based on post ID.
 *
 * Has categories in &#039;post_category&#039; property or key. Has tags in &#039;tags_input&#039;
 * property or key.
 *
 * @since 1.0.0
 * @deprecated 3.5.0 Use get_post()
 * @see get_post()
 *
 * @param int $postid Post ID.
 * @param string $mode How to return result, either OBJECT, ARRAY_N, or ARRAY_A.
 * @return WP_Post|null Post object or array holding post contents and information
 */
function wp_get_single_post( $postid = 0, $mode = OBJECT ) {
	_deprecated_function( __FUNCTION__, &#039;3.5.0&#039;, &#039;get_post()&#039; );
	return get_post( $postid, $mode );
}

/**
 * Check that the user login name and password is correct.
 *
 * @since 0.71
 * @deprecated 3.5.0 Use wp_authenticate()
 * @see wp_authenticate()
 *
 * @param string $user_login User name.
 * @param string $user_pass User password.
 * @return bool False if does not authenticate, true if username and password authenticates.
 */
function user_pass_ok($user_login, $user_pass) {
	_deprecated_function( __FUNCTION__, &#039;3.5.0&#039;, &#039;wp_authenticate()&#039; );
	$user = wp_authenticate( $user_login, $user_pass );
	if ( is_wp_error( $user ) )
		return false;

	return true;
}

/**
 * Callback formerly fired on the save_post hook. No longer needed.
 *
 * @since 2.3.0
 * @deprecated 3.5.0
 */
function _save_post_hook() {}

/**
 * Check if the installed version of GD supports particular image type
 *
 * @since 2.9.0
 * @deprecated 3.5.0 Use wp_image_editor_supports()
 * @see wp_image_editor_supports()
 *
 * @param string $mime_type
 * @return bool
 */
function gd_edit_image_support($mime_type) {
	_deprecated_function( __FUNCTION__, &#039;3.5.0&#039;, &#039;wp_image_editor_supports()&#039; );

	if ( function_exists(&#039;imagetypes&#039;) ) {
		switch( $mime_type ) {
			case &#039;image/jpeg&#039;:
				return (imagetypes() &amp; IMG_JPG) != 0;
			case &#039;image/png&#039;:
				return (imagetypes() &amp; IMG_PNG) != 0;
			case &#039;image/gif&#039;:
				return (imagetypes() &amp; IMG_GIF) != 0;
			case &#039;image/webp&#039;:
				return (imagetypes() &amp; IMG_WEBP) != 0;
			case &#039;image/avif&#039;:
				return (imagetypes() &amp; IMG_AVIF) != 0;
			}
	} else {
		switch( $mime_type ) {
			case &#039;image/jpeg&#039;:
				return function_exists(&#039;imagecreatefromjpeg&#039;);
			case &#039;image/png&#039;:
				return function_exists(&#039;imagecreatefrompng&#039;);
			case &#039;image/gif&#039;:
				return function_exists(&#039;imagecreatefromgif&#039;);
			case &#039;image/webp&#039;:
				return function_exists(&#039;imagecreatefromwebp&#039;);
			case &#039;image/avif&#039;:
				return function_exists(&#039;imagecreatefromavif&#039;);
		}
	}
	return false;
}

/**
 * Converts an integer byte value to a shorthand byte value.
 *
 * @since 2.3.0
 * @deprecated 3.6.0 Use size_format()
 * @see size_format()
 *
 * @param int $bytes An integer byte value.
 * @return string A shorthand byte value.
 */
function wp_convert_bytes_to_hr( $bytes ) {
	_deprecated_function( __FUNCTION__, &#039;3.6.0&#039;, &#039;size_format()&#039; );

	$units = array( 0 =&gt; &#039;B&#039;, 1 =&gt; &#039;KB&#039;, 2 =&gt; &#039;MB&#039;, 3 =&gt; &#039;GB&#039;, 4 =&gt; &#039;TB&#039; );
	$log   = log( $bytes, KB_IN_BYTES );
	$power = ! is_nan( $log ) &amp;&amp; ! is_infinite( $log ) ? (int) $log : 0;
	$size  = KB_IN_BYTES ** ( $log - $power );

	if ( ! is_nan( $size ) &amp;&amp; array_key_exists( $power, $units ) ) {
		$unit = $units[ $power ];
	} else {
		$size = $bytes;
		$unit = $units[0];
	}

	return $size . $unit;
}

/**
 * Formerly used internally to tidy up the search terms.
 *
 * @since 2.9.0
 * @access private
 * @deprecated 3.7.0
 *
 * @param string $t Search terms to &quot;tidy&quot;, e.g. trim.
 * @return string Trimmed search terms.
 */
function _search_terms_tidy( $t ) {
	_deprecated_function( __FUNCTION__, &#039;3.7.0&#039; );
	return trim( $t, &quot;\&quot;&#039;\n\r &quot; );
}

/**
 * Determine if TinyMCE is available.
 *
 * Checks to see if the user has deleted the tinymce files to slim down
 * their WordPress installation.
 *
 * @since 2.1.0
 * @deprecated 3.9.0
 *
 * @return bool Whether TinyMCE exists.
 */
function rich_edit_exists() {
	global $wp_rich_edit_exists;
	_deprecated_function( __FUNCTION__, &#039;3.9.0&#039; );

	if ( ! isset( $wp_rich_edit_exists ) )
		$wp_rich_edit_exists = file_exists( ABSPATH . WPINC . &#039;/js/tinymce/tinymce.js&#039; );

	return $wp_rich_edit_exists;
}

/**
 * Old callback for tag link tooltips.
 *
 * @since 2.7.0
 * @access private
 * @deprecated 3.9.0
 *
 * @param int $count Number of topics.
 * @return int Number of topics.
 */
function default_topic_count_text( $count ) {
	return $count;
}

/**
 * Formerly used to escape strings before inserting into the DB.
 *
 * Has not performed this function for many, many years. Use wpdb::prepare() instead.
 *
 * @since 0.71
 * @deprecated 3.9.0
 *
 * @param string $content The text to format.
 * @return string The very same text.
 */
function format_to_post( $content ) {
	_deprecated_function( __FUNCTION__, &#039;3.9.0&#039; );
	return $content;
}

/**
 * Formerly used to escape strings before searching the DB. It was poorly documented and never worked as described.
 *
 * @since 2.5.0
 * @deprecated 4.0.0 Use wpdb::esc_like()
 * @see wpdb::esc_like()
 *
 * @param string $text The text to be escaped.
 * @return string text, safe for inclusion in LIKE query.
 */
function like_escape($text) {
	_deprecated_function( __FUNCTION__, &#039;4.0.0&#039;, &#039;wpdb::esc_like()&#039; );
	return str_replace( array( &quot;%&quot;, &quot;_&quot; ), array( &quot;\\%&quot;, &quot;\\_&quot; ), $text );
}

/**
 * Determines if the URL can be accessed over SSL.
 *
 * Determines if the URL can be accessed over SSL by using the WordPress HTTP API to access
 * the URL using https as the scheme.
 *
 * @since 2.5.0
 * @deprecated 4.0.0
 *
 * @param string $url The URL to test.
 * @return bool Whether SSL access is available.
 */
function url_is_accessable_via_ssl( $url ) {
	_deprecated_function( __FUNCTION__, &#039;4.0.0&#039; );

	$response = wp_remote_get( set_url_scheme( $url, &#039;https&#039; ) );

	if ( !is_wp_error( $response ) ) {
		$status = wp_remote_retrieve_response_code( $response );
		if ( 200 == $status || 401 == $status ) {
			return true;
		}
	}

	return false;
}

/**
 * Start preview theme output buffer.
 *
 * Will only perform task if the user has permissions and template and preview
 * query variables exist.
 *
 * @since 2.6.0
 * @deprecated 4.3.0
 */
function preview_theme() {
	_deprecated_function( __FUNCTION__, &#039;4.3.0&#039; );
}

/**
 * Private function to modify the current template when previewing a theme
 *
 * @since 2.9.0
 * @deprecated 4.3.0
 * @access private
 *
 * @return string
 */
function _preview_theme_template_filter() {
	_deprecated_function( __FUNCTION__, &#039;4.3.0&#039; );
	return &#039;&#039;;
}

/**
 * Private function to modify the current stylesheet when previewing a theme
 *
 * @since 2.9.0
 * @deprecated 4.3.0
 * @access private
 *
 * @return string
 */
function _preview_theme_stylesheet_filter() {
	_deprecated_function( __FUNCTION__, &#039;4.3.0&#039; );
	return &#039;&#039;;
}

/**
 * Callback function for ob_start() to capture all links in the theme.
 *
 * @since 2.6.0
 * @deprecated 4.3.0
 * @access private
 *
 * @param string $content
 * @return string
 */
function preview_theme_ob_filter( $content ) {
	_deprecated_function( __FUNCTION__, &#039;4.3.0&#039; );
	return $content;
}

/**
 * Manipulates preview theme links in order to control and maintain location.
 *
 * Callback function for preg_replace_callback() to accept and filter matches.
 *
 * @since 2.6.0
 * @deprecated 4.3.0
 * @access private
 *
 * @param array $matches
 * @return string
 */
function preview_theme_ob_filter_callback( $matches ) {
	_deprecated_function( __FUNCTION__, &#039;4.3.0&#039; );
	return &#039;&#039;;
}

/**
 * Formats text for the rich text editor.
 *
 * The {@see &#039;richedit_pre&#039;} filter is applied here. If `$text` is empty the filter will
 * be applied to an empty string.
 *
 * @since 2.0.0
 * @deprecated 4.3.0 Use format_for_editor()
 * @see format_for_editor()
 *
 * @param string $text The text to be formatted.
 * @return string The formatted text after filter is applied.
 */
function wp_richedit_pre($text) {
	_deprecated_function( __FUNCTION__, &#039;4.3.0&#039;, &#039;format_for_editor()&#039; );

	if ( empty( $text ) ) {
		/**
		 * Filters text returned for the rich text editor.
		 *
		 * This filter is first evaluated, and the value returned, if an empty string
		 * is passed to wp_richedit_pre(). If an empty string is passed, it results
		 * in a break tag and line feed.
		 *
		 * If a non-empty string is passed, the filter is evaluated on the wp_richedit_pre()
		 * return after being formatted.
		 *
		 * @since 2.0.0
		 * @deprecated 4.3.0
		 *
		 * @param string $output Text for the rich text editor.
		 */
		return apply_filters( &#039;richedit_pre&#039;, &#039;&#039; );
	}

	$output = convert_chars($text);
	$output = wpautop($output);
	$output = htmlspecialchars($output, ENT_NOQUOTES, get_option( &#039;blog_charset&#039; ) );

	/** This filter is documented in wp-includes/deprecated.php */
	return apply_filters( &#039;richedit_pre&#039;, $output );
}

/**
 * Formats text for the HTML editor.
 *
 * Unless $output is empty it will pass through htmlspecialchars before the
 * {@see &#039;htmledit_pre&#039;} filter is applied.
 *
 * @since 2.5.0
 * @deprecated 4.3.0 Use format_for_editor()
 * @see format_for_editor()
 *
 * @param string $output The text to be formatted.
 * @return string Formatted text after filter applied.
 */
function wp_htmledit_pre($output) {
	_deprecated_function( __FUNCTION__, &#039;4.3.0&#039;, &#039;format_for_editor()&#039; );

	if ( !empty($output) )
		$output = htmlspecialchars($output, ENT_NOQUOTES, get_option( &#039;blog_charset&#039; ) ); // Convert only &#039;&lt; &gt; &amp;&#039;.

	/**
	 * Filters the text before it is formatted for the HTML editor.
	 *
	 * @since 2.5.0
	 * @deprecated 4.3.0
	 *
	 * @param string $output The HTML-formatted text.
	 */
	return apply_filters( &#039;htmledit_pre&#039;, $output );
}

/**
 * Retrieve permalink from post ID.
 *
 * @since 1.0.0
 * @deprecated 4.4.0 Use get_permalink()
 * @see get_permalink()
 *
 * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
 * @return string|false
 */
function post_permalink( $post = 0 ) {
	_deprecated_function( __FUNCTION__, &#039;4.4.0&#039;, &#039;get_permalink()&#039; );

	return get_permalink( $post );
}

/**
 * Perform a HTTP HEAD or GET request.
 *
 * If $file_path is a writable filename, this will do a GET request and write
 * the file to that path.
 *
 * @since 2.5.0
 * @deprecated 4.4.0 Use WP_Http
 * @see WP_Http
 *
 * @param string      $url       URL to fetch.
 * @param string|bool $file_path Optional. File path to write request to. Default false.
 * @param int         $red       Optional. The number of Redirects followed, Upon 5 being hit,
 *                               returns false. Default 1.
 * @return \WpOrg\Requests\Utility\CaseInsensitiveDictionary|false Headers on success, false on failure.
 */
function wp_get_http( $url, $file_path = false, $red = 1 ) {
	_deprecated_function( __FUNCTION__, &#039;4.4.0&#039;, &#039;WP_Http&#039; );

	// Add 60 seconds to the script timeout to ensure the remote request has enough time.
	if ( function_exists( &#039;set_time_limit&#039; ) ) {
		@set_time_limit( 60 );
	}

	if ( $red &gt; 5 )
		return false;

	$options = array();
	$options[&#039;redirection&#039;] = 5;

	if ( false == $file_path )
		$options[&#039;method&#039;] = &#039;HEAD&#039;;
	else
		$options[&#039;method&#039;] = &#039;GET&#039;;

	$response = wp_safe_remote_request( $url, $options );

	if ( is_wp_error( $response ) )
		return false;

	$headers = wp_remote_retrieve_headers( $response );
	$headers[&#039;response&#039;] = wp_remote_retrieve_response_code( $response );

	// WP_HTTP no longer follows redirects for HEAD requests.
	if ( &#039;HEAD&#039; == $options[&#039;method&#039;] &amp;&amp; in_array($headers[&#039;response&#039;], array(301, 302)) &amp;&amp; isset( $headers[&#039;location&#039;] ) ) {
		return wp_get_http( $headers[&#039;location&#039;], $file_path, ++$red );
	}

	if ( false == $file_path )
		return $headers;

	// GET request - write it to the supplied filename.
	$out_fp = fopen($file_path, &#039;w&#039;);
	if ( !$out_fp )
		return $headers;

	fwrite( $out_fp,  wp_remote_retrieve_body( $response ) );
	fclose($out_fp);
	clearstatcache();

	return $headers;
}

/**
 * Whether SSL login should be forced.
 *
 * @since 2.6.0
 * @deprecated 4.4.0 Use force_ssl_admin()
 * @see force_ssl_admin()
 *
 * @param string|bool $force Optional Whether to force SSL login. Default null.
 * @return bool True if forced, false if not forced.
 */
function force_ssl_login( $force = null ) {
	_deprecated_function( __FUNCTION__, &#039;4.4.0&#039;, &#039;force_ssl_admin()&#039; );
	return force_ssl_admin( $force );
}

/**
 * Retrieve path of comment popup template in current or parent template.
 *
 * @since 1.5.0
 * @deprecated 4.5.0
 *
 * @return string Full path to comments popup template file.
 */
function get_comments_popup_template() {
	_deprecated_function( __FUNCTION__, &#039;4.5.0&#039; );

	return &#039;&#039;;
}

/**
 * Determines whether the current URL is within the comments popup window.
 *
 * For more information on this and similar theme functions, check out
 * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
 * Conditional Tags} article in the Theme Developer Handbook.
 *
 * @since 1.5.0
 * @deprecated 4.5.0
 *
 * @return false Always returns false.
 */
function is_comments_popup() {
	_deprecated_function( __FUNCTION__, &#039;4.5.0&#039; );

	return false;
}

/**
 * Display the JS popup script to show a comment.
 *
 * @since 0.71
 * @deprecated 4.5.0
 */
function comments_popup_script() {
	_deprecated_function( __FUNCTION__, &#039;4.5.0&#039; );
}

/**
 * Adds element attributes to open links in new tabs.
 *
 * @since 0.71
 * @deprecated 4.5.0
 *
 * @param string $text Content to replace links to open in a new tab.
 * @return string Content that has filtered links.
 */
function popuplinks( $text ) {
	_deprecated_function( __FUNCTION__, &#039;4.5.0&#039; );
	$text = preg_replace(&#039;/&lt;a (.+?)&gt;/i&#039;, &quot;&lt;a $1 target=&#039;_blank&#039; rel=&#039;external&#039;&gt;&quot;, $text);
	return $text;
}

/**
 * The Google Video embed handler callback.
 *
 * Deprecated function that previously assisted in turning Google Video URLs
 * into embeds but that service has since been shut down.
 *
 * @since 2.9.0
 * @deprecated 4.6.0
 *
 * @return string An empty string.
 */
function wp_embed_handler_googlevideo( $matches, $attr, $url, $rawattr ) {
	_deprecated_function( __FUNCTION__, &#039;4.6.0&#039; );

	return &#039;&#039;;
}

/**
 * Retrieve path of paged template in current or parent template.
 *
 * @since 1.5.0
 * @deprecated 4.7.0 The paged.php template is no longer part of the theme template hierarchy.
 *
 * @return string Full path to paged template file.
 */
function get_paged_template() {
	_deprecated_function( __FUNCTION__, &#039;4.7.0&#039; );

	return get_query_template( &#039;paged&#039; );
}

/**
 * Removes the HTML JavaScript entities found in early versions of Netscape 4.
 *
 * Previously, this function was pulled in from the original
 * import of kses and removed a specific vulnerability only
 * existent in early version of Netscape 4. However, this
 * vulnerability never affected any other browsers and can
 * be considered safe for the modern web.
 *
 * The regular expression which sanitized this vulnerability
 * has been removed in consideration of the performance and
 * energy demands it placed, now merely passing through its
 * input to the return.
 *
 * @since 1.0.0
 * @deprecated 4.7.0 Officially dropped security support for Netscape 4.
 *
 * @param string $content
 * @return string
 */
function wp_kses_js_entities( $content ) {
	_deprecated_function( __FUNCTION__, &#039;4.7.0&#039; );

	return preg_replace( &#039;%&amp;\s*\{[^}]*(\}\s*;?|$)%&#039;, &#039;&#039;, $content );
}

/**
 * Sort categories by ID.
 *
 * Used by usort() as a callback, should not be used directly. Can actually be
 * used to sort any term object.
 *
 * @since 2.3.0
 * @deprecated 4.7.0 Use wp_list_sort()
 * @access private
 *
 * @param object $a
 * @param object $b
 * @return int
 */
function _usort_terms_by_ID( $a, $b ) {
	_deprecated_function( __FUNCTION__, &#039;4.7.0&#039;, &#039;wp_list_sort()&#039; );

	if ( $a-&gt;term_id &gt; $b-&gt;term_id )
		return 1;
	elseif ( $a-&gt;term_id &lt; $b-&gt;term_id )
		return -1;
	else
		return 0;
}

/**
 * Sort categories by name.
 *
 * Used by usort() as a callback, should not be used directly. Can actually be
 * used to sort any term object.
 *
 * @since 2.3.0
 * @deprecated 4.7.0 Use wp_list_sort()
 * @access private
 *
 * @param object $a
 * @param object $b
 * @return int
 */
function _usort_terms_by_name( $a, $b ) {
	_deprecated_function( __FUNCTION__, &#039;4.7.0&#039;, &#039;wp_list_sort()&#039; );

	return strcmp( $a-&gt;name, $b-&gt;name );
}

/**
 * Sort menu items by the desired key.
 *
 * @since 3.0.0
 * @deprecated 4.7.0 Use wp_list_sort()
 * @access private
 *
 * @global string $_menu_item_sort_prop
 *
 * @param object $a The first object to compare
 * @param object $b The second object to compare
 * @return int -1, 0, or 1 if $a is considered to be respectively less than, equal to, or greater than $b.
 */
function _sort_nav_menu_items( $a, $b ) {
	global $_menu_item_sort_prop;

	_deprecated_function( __FUNCTION__, &#039;4.7.0&#039;, &#039;wp_list_sort()&#039; );

	if ( empty( $_menu_item_sort_prop ) )
		return 0;

	if ( ! isset( $a-&gt;$_menu_item_sort_prop ) || ! isset( $b-&gt;$_menu_item_sort_prop ) )
		return 0;

	$_a = (int) $a-&gt;$_menu_item_sort_prop;
	$_b = (int) $b-&gt;$_menu_item_sort_prop;

	if ( $a-&gt;$_menu_item_sort_prop == $b-&gt;$_menu_item_sort_prop )
		return 0;
	elseif ( $_a == $a-&gt;$_menu_item_sort_prop &amp;&amp; $_b == $b-&gt;$_menu_item_sort_prop )
		return $_a &lt; $_b ? -1 : 1;
	else
		return strcmp( $a-&gt;$_menu_item_sort_prop, $b-&gt;$_menu_item_sort_prop );
}

/**
 * Retrieves the Press This bookmarklet link.
 *
 * @since 2.6.0
 * @deprecated 4.9.0
 * @return string
 */
function get_shortcut_link() {
	_deprecated_function( __FUNCTION__, &#039;4.9.0&#039; );

	$link = &#039;&#039;;

	/**
	 * Filters the Press This bookmarklet link.
	 *
	 * @since 2.6.0
	 * @deprecated 4.9.0
	 *
	 * @param string $link The Press This bookmarklet link.
	 */
	return apply_filters( &#039;shortcut_link&#039;, $link );
}

/**
 * Ajax handler for saving a post from Press This.
 *
 * @since 4.2.0
 * @deprecated 4.9.0
 */
function wp_ajax_press_this_save_post() {
	_deprecated_function( __FUNCTION__, &#039;4.9.0&#039; );
	if ( is_plugin_active( &#039;press-this/press-this-plugin.php&#039; ) ) {
		include WP_PLUGIN_DIR . &#039;/press-this/class-wp-press-this-plugin.php&#039;;
		$wp_press_this = new WP_Press_This_Plugin();
		$wp_press_this-&gt;save_post();
	} else {
		wp_send_json_error( array( &#039;errorMessage&#039; =&gt; __( &#039;The Press This plugin is required.&#039; ) ) );
	}
}

/**
 * Ajax handler for creating new category from Press This.
 *
 * @since 4.2.0
 * @deprecated 4.9.0
 */
function wp_ajax_press_this_add_category() {
	_deprecated_function( __FUNCTION__, &#039;4.9.0&#039; );
	if ( is_plugin_active( &#039;press-this/press-this-plugin.php&#039; ) ) {
		include WP_PLUGIN_DIR . &#039;/press-this/class-wp-press-this-plugin.php&#039;;
		$wp_press_this = new WP_Press_This_Plugin();
		$wp_press_this-&gt;add_category();
	} else {
		wp_send_json_error( array( &#039;errorMessage&#039; =&gt; __( &#039;The Press This plugin is required.&#039; ) ) );
	}
}

/**
 * Return the user request object for the specified request ID.
 *
 * @since 4.9.6
 * @deprecated 5.4.0 Use wp_get_user_request()
 * @see wp_get_user_request()
 *
 * @param int $request_id The ID of the user request.
 * @return WP_User_Request|false
 */
function wp_get_user_request_data( $request_id ) {
	_deprecated_function( __FUNCTION__, &#039;5.4.0&#039;, &#039;wp_get_user_request()&#039; );
	return wp_get_user_request( $request_id );
}

/**
 * Filters &#039;img&#039; elements in post content to add &#039;srcset&#039; and &#039;sizes&#039; attributes.
 *
 * @since 4.4.0
 * @deprecated 5.5.0
 *
 * @see wp_image_add_srcset_and_sizes()
 *
 * @param string $content The raw post content to be filtered.
 * @return string Converted content with &#039;srcset&#039; and &#039;sizes&#039; attributes added to images.
 */
function wp_make_content_images_responsive( $content ) {
	_deprecated_function( __FUNCTION__, &#039;5.5.0&#039;, &#039;wp_filter_content_tags()&#039; );

	// This will also add the `loading` attribute to `img` tags, if enabled.
	return wp_filter_content_tags( $content );
}

/**
 * Turn register globals off.
 *
 * @since 2.1.0
 * @access private
 * @deprecated 5.5.0
 */
function wp_unregister_GLOBALS() {
	// register_globals was deprecated in PHP 5.3 and removed entirely in PHP 5.4.
	_deprecated_function( __FUNCTION__, &#039;5.5.0&#039; );
}

/**
 * Does comment contain disallowed characters or words.
 *
 * @since 1.5.0
 * @deprecated 5.5.0 Use wp_check_comment_disallowed_list() instead.
 *                   Please consider writing more inclusive code.
 *
 * @param string $author The author of the comment
 * @param string $email The email of the comment
 * @param string $url The url used in the comment
 * @param string $comment The comment content
 * @param string $user_ip The comment author&#039;s IP address
 * @param string $user_agent The author&#039;s browser user agent
 * @return bool True if comment contains disallowed content, false if comment does not
 */
function wp_blacklist_check( $author, $email, $url, $comment, $user_ip, $user_agent ) {
	_deprecated_function( __FUNCTION__, &#039;5.5.0&#039;, &#039;wp_check_comment_disallowed_list()&#039; );

	return wp_check_comment_disallowed_list( $author, $email, $url, $comment, $user_ip, $user_agent );
}

/**
 * Filters out `register_meta()` args based on an allowed list.
 *
 * `register_meta()` args may change over time, so requiring the allowed list
 * to be explicitly turned off is a warranty seal of sorts.
 *
 * @access private
 * @since 4.6.0
 * @deprecated 5.5.0 Use _wp_register_meta_args_allowed_list() instead.
 *                   Please consider writing more inclusive code.
 *
 * @param array $args         Arguments from `register_meta()`.
 * @param array $default_args Default arguments for `register_meta()`.
 * @return array Filtered arguments.
 */
function _wp_register_meta_args_whitelist( $args, $default_args ) {
	_deprecated_function( __FUNCTION__, &#039;5.5.0&#039;, &#039;_wp_register_meta_args_allowed_list()&#039; );

	return _wp_register_meta_args_allowed_list( $args, $default_args );
}

/**
 * Adds an array of options to the list of allowed options.
 *
 * @since 2.7.0
 * @deprecated 5.5.0 Use add_allowed_options() instead.
 *                   Please consider writing more inclusive code.
 *
 * @param array        $new_options
 * @param string|array $options
 * @return array
 */
function add_option_whitelist( $new_options, $options = &#039;&#039; ) {
	_deprecated_function( __FUNCTION__, &#039;5.5.0&#039;, &#039;add_allowed_options()&#039; );

	return add_allowed_options( $new_options, $options );
}

/**
 * Removes a list of options from the allowed options list.
 *
 * @since 2.7.0
 * @deprecated 5.5.0 Use remove_allowed_options() instead.
 *                   Please consider writing more inclusive code.
 *
 * @param array        $del_options
 * @param string|array $options
 * @return array
 */
function remove_option_whitelist( $del_options, $options = &#039;&#039; ) {
	_deprecated_function( __FUNCTION__, &#039;5.5.0&#039;, &#039;remove_allowed_options()&#039; );

	return remove_allowed_options( $del_options, $options );
}

/**
 * Adds slashes to only string values in an array of values.
 *
 * This should be used when preparing data for core APIs that expect slashed data.
 * This should not be used to escape data going directly into an SQL query.
 *
 * @since 5.3.0
 * @deprecated 5.6.0 Use wp_slash()
 *
 * @see wp_slash()
 *
 * @param mixed $value Scalar or array of scalars.
 * @return mixed Slashes $value
 */
function wp_slash_strings_only( $value ) {
	return map_deep( $value, &#039;addslashes_strings_only&#039; );
}

/**
 * Adds slashes only if the provided value is a string.
 *
 * @since 5.3.0
 * @deprecated 5.6.0
 *
 * @see wp_slash()
 *
 * @param mixed $value
 * @return mixed
 */
function addslashes_strings_only( $value ) {
	return is_string( $value ) ? addslashes( $value ) : $value;
}

/**
 * Displays a `noindex` meta tag if required by the blog configuration.
 *
 * If a blog is marked as not being public then the `noindex` meta tag will be
 * output to tell web robots not to index the page content.
 *
 * Typical usage is as a {@see &#039;wp_head&#039;} callback:
 *
 *     add_action( &#039;wp_head&#039;, &#039;noindex&#039; );
 *
 * @see wp_no_robots()
 *
 * @since 2.1.0
 * @deprecated 5.7.0 Use wp_robots_noindex() instead on &#039;wp_robots&#039; filter.
 */
function noindex() {
	_deprecated_function( __FUNCTION__, &#039;5.7.0&#039;, &#039;wp_robots_noindex()&#039; );

	// If the blog is not public, tell robots to go away.
	if ( &#039;0&#039; == get_option( &#039;blog_public&#039; ) ) {
		wp_no_robots();
	}
}

/**
 * Display a `noindex` meta tag.
 *
 * Outputs a `noindex` meta tag that tells web robots not to index the page content.
 *
 * Typical usage is as a {@see &#039;wp_head&#039;} callback:
 *
 *     add_action( &#039;wp_head&#039;, &#039;wp_no_robots&#039; );
 *
 * @since 3.3.0
 * @since 5.3.0 Echo `noindex,nofollow` if search engine visibility is discouraged.
 * @deprecated 5.7.0 Use wp_robots_no_robots() instead on &#039;wp_robots&#039; filter.
 */
function wp_no_robots() {
	_deprecated_function( __FUNCTION__, &#039;5.7.0&#039;, &#039;wp_robots_no_robots()&#039; );

	if ( get_option( &#039;blog_public&#039; ) ) {
		echo &quot;&lt;meta name=&#039;robots&#039; content=&#039;noindex,follow&#039; /&gt;\n&quot;;
		return;
	}

	echo &quot;&lt;meta name=&#039;robots&#039; content=&#039;noindex,nofollow&#039; /&gt;\n&quot;;
}

/**
 * Display a `noindex,noarchive` meta tag and referrer `strict-origin-when-cross-origin` meta tag.
 *
 * Outputs a `noindex,noarchive` meta tag that tells web robots not to index or cache the page content.
 * Outputs a referrer `strict-origin-when-cross-origin` meta tag that tells the browser not to send
 * the full URL as a referrer to other sites when cross-origin assets are loaded.
 *
 * Typical usage is as a {@see &#039;wp_head&#039;} callback:
 *
 *     add_action( &#039;wp_head&#039;, &#039;wp_sensitive_page_meta&#039; );
 *
 * @since 5.0.1
 * @deprecated 5.7.0 Use wp_robots_sensitive_page() instead on &#039;wp_robots&#039; filter
 *                   and wp_strict_cross_origin_referrer() on &#039;wp_head&#039; action.
 *
 * @see wp_robots_sensitive_page()
 */
function wp_sensitive_page_meta() {
	_deprecated_function( __FUNCTION__, &#039;5.7.0&#039;, &#039;wp_robots_sensitive_page()&#039; );

	?&gt;
	&lt;meta name=&#039;robots&#039; content=&#039;noindex,noarchive&#039; /&gt;
	&lt;?php
	wp_strict_cross_origin_referrer();
}

/**
 * Render inner blocks from the `core/columns` block for generating an excerpt.
 *
 * @since 5.2.0
 * @access private
 * @deprecated 5.8.0 Use _excerpt_render_inner_blocks() introduced in 5.8.0.
 *
 * @see _excerpt_render_inner_blocks()
 *
 * @param array $columns        The parsed columns block.
 * @param array $allowed_blocks The list of allowed inner blocks.
 * @return string The rendered inner blocks.
 */
function _excerpt_render_inner_columns_blocks( $columns, $allowed_blocks ) {
	_deprecated_function( __FUNCTION__, &#039;5.8.0&#039;, &#039;_excerpt_render_inner_blocks()&#039; );

	return _excerpt_render_inner_blocks( $columns, $allowed_blocks );
}

/**
 * Renders the duotone filter SVG and returns the CSS filter property to
 * reference the rendered SVG.
 *
 * @since 5.9.0
 * @deprecated 5.9.1 Use wp_get_duotone_filter_property() introduced in 5.9.1.
 *
 * @see wp_get_duotone_filter_property()
 *
 * @param array $preset Duotone preset value as seen in theme.json.
 * @return string Duotone CSS filter property.
 */
function wp_render_duotone_filter_preset( $preset ) {
	_deprecated_function( __FUNCTION__, &#039;5.9.1&#039;, &#039;wp_get_duotone_filter_property()&#039; );

	return wp_get_duotone_filter_property( $preset );
}

/**
 * Checks whether serialization of the current block&#039;s border properties should occur.
 *
 * @since 5.8.0
 * @access private
 * @deprecated 6.0.0 Use wp_should_skip_block_supports_serialization() introduced in 6.0.0.
 *
 * @see wp_should_skip_block_supports_serialization()
 *
 * @param WP_Block_Type $block_type Block type.
 * @return bool Whether serialization of the current block&#039;s border properties
 *              should occur.
 */
function wp_skip_border_serialization( $block_type ) {
	_deprecated_function( __FUNCTION__, &#039;6.0.0&#039;, &#039;wp_should_skip_block_supports_serialization()&#039; );

	$border_support = isset( $block_type-&gt;supports[&#039;__experimentalBorder&#039;] )
		? $block_type-&gt;supports[&#039;__experimentalBorder&#039;]
		: false;

	return is_array( $border_support ) &amp;&amp;
		array_key_exists( &#039;__experimentalSkipSerialization&#039;, $border_support ) &amp;&amp;
		$border_support[&#039;__experimentalSkipSerialization&#039;];
}

/**
 * Checks whether serialization of the current block&#039;s dimensions properties should occur.
 *
 * @since 5.9.0
 * @access private
 * @deprecated 6.0.0 Use wp_should_skip_block_supports_serialization() introduced in 6.0.0.
 *
 * @see wp_should_skip_block_supports_serialization()
 *
 * @param WP_Block_type $block_type Block type.
 * @return bool Whether to serialize spacing support styles &amp; classes.
 */
function wp_skip_dimensions_serialization( $block_type ) {
	_deprecated_function( __FUNCTION__, &#039;6.0.0&#039;, &#039;wp_should_skip_block_supports_serialization()&#039; );

	$dimensions_support = isset( $block_type-&gt;supports[&#039;__experimentalDimensions&#039;] )
		? $block_type-&gt;supports[&#039;__experimentalDimensions&#039;]
		: false;

	return is_array( $dimensions_support ) &amp;&amp;
		array_key_exists( &#039;__experimentalSkipSerialization&#039;, $dimensions_support ) &amp;&amp;
		$dimensions_support[&#039;__experimentalSkipSerialization&#039;];
}

/**
 * Checks whether serialization of the current block&#039;s spacing properties should occur.
 *
 * @since 5.9.0
 * @access private
 * @deprecated 6.0.0 Use wp_should_skip_block_supports_serialization() introduced in 6.0.0.
 *
 * @see wp_should_skip_block_supports_serialization()
 *
 * @param WP_Block_Type $block_type Block type.
 * @return bool Whether to serialize spacing support styles &amp; classes.
 */
function wp_skip_spacing_serialization( $block_type ) {
	_deprecated_function( __FUNCTION__, &#039;6.0.0&#039;, &#039;wp_should_skip_block_supports_serialization()&#039; );

	$spacing_support = isset( $block_type-&gt;supports[&#039;spacing&#039;] )
		? $block_type-&gt;supports[&#039;spacing&#039;]
		: false;

	return is_array( $spacing_support ) &amp;&amp;
		array_key_exists( &#039;__experimentalSkipSerialization&#039;, $spacing_support ) &amp;&amp;
		$spacing_support[&#039;__experimentalSkipSerialization&#039;];
}

/**
 * Inject the block editor assets that need to be loaded into the editor&#039;s iframe as an inline script.
 *
 * @since 5.8.0
 * @deprecated 6.0.0
 */
function wp_add_iframed_editor_assets_html() {
	_deprecated_function( __FUNCTION__, &#039;6.0.0&#039; );
}

/**
 * Retrieves thumbnail for an attachment.
 * Note that this works only for the (very) old image metadata style where &#039;thumb&#039; was set,
 * and the &#039;sizes&#039; array did not exist. This function returns false for the newer image metadata style
 * despite that &#039;thumbnail&#039; is present in the &#039;sizes&#039; array.
 *
 * @since 2.1.0
 * @deprecated 6.1.0
 *
 * @param int $post_id Optional. Attachment ID. Default is the ID of the global `$post`.
 * @return string|false Thumbnail file path on success, false on failure.
 */
function wp_get_attachment_thumb_file( $post_id = 0 ) {
	_deprecated_function( __FUNCTION__, &#039;6.1.0&#039; );

	$post_id = (int) $post_id;
	$post    = get_post( $post_id );

	if ( ! $post ) {
		return false;
	}

	// Use $post-&gt;ID rather than $post_id as get_post() may have used the global $post object.
	$imagedata = wp_get_attachment_metadata( $post-&gt;ID );

	if ( ! is_array( $imagedata ) ) {
		return false;
	}

	$file = get_attached_file( $post-&gt;ID );

	if ( ! empty( $imagedata[&#039;thumb&#039;] ) ) {
		$thumbfile = str_replace( wp_basename( $file ), $imagedata[&#039;thumb&#039;], $file );
		if ( file_exists( $thumbfile ) ) {
			/**
			 * Filters the attachment thumbnail file path.
			 *
			 * @since 2.1.0
			 *
			 * @param string $thumbfile File path to the attachment thumbnail.
			 * @param int    $post_id   Attachment ID.
			 */
			return apply_filters( &#039;wp_get_attachment_thumb_file&#039;, $thumbfile, $post-&gt;ID );
		}
	}

	return false;
}

/**
 * Gets the path to a translation file for loading a textdomain just in time.
 *
 * Caches the retrieved results internally.
 *
 * @since 4.7.0
 * @deprecated 6.1.0
 * @access private
 *
 * @see _load_textdomain_just_in_time()
 *
 * @param string $domain Text domain. Unique identifier for retrieving translated strings.
 * @param bool   $reset  Whether to reset the internal cache. Used by the switch to locale functionality.
 * @return string|false The path to the translation file or false if no translation file was found.
 */
function _get_path_to_translation( $domain, $reset = false ) {
	_deprecated_function( __FUNCTION__, &#039;6.1.0&#039;, &#039;WP_Textdomain_Registry&#039; );

	static $available_translations = array();

	if ( true === $reset ) {
		$available_translations = array();
	}

	if ( ! isset( $available_translations[ $domain ] ) ) {
		$available_translations[ $domain ] = _get_path_to_translation_from_lang_dir( $domain );
	}

	return $available_translations[ $domain ];
}

/**
 * Gets the path to a translation file in the languages directory for the current locale.
 *
 * Holds a cached list of available .mo files to improve performance.
 *
 * @since 4.7.0
 * @deprecated 6.1.0
 * @access private
 *
 * @see _get_path_to_translation()
 *
 * @param string $domain Text domain. Unique identifier for retrieving translated strings.
 * @return string|false The path to the translation file or false if no translation file was found.
 */
function _get_path_to_translation_from_lang_dir( $domain ) {
	_deprecated_function( __FUNCTION__, &#039;6.1.0&#039;, &#039;WP_Textdomain_Registry&#039; );

	static $cached_mofiles = null;

	if ( null === $cached_mofiles ) {
		$cached_mofiles = array();

		$locations = array(
			WP_LANG_DIR . &#039;/plugins&#039;,
			WP_LANG_DIR . &#039;/themes&#039;,
		);

		foreach ( $locations as $location ) {
			$mofiles = glob( $location . &#039;/*.mo&#039; );
			if ( $mofiles ) {
				$cached_mofiles = array_merge( $cached_mofiles, $mofiles );
			}
		}
	}

	$locale = determine_locale();
	$mofile = &quot;{$domain}-{$locale}.mo&quot;;

	$path = WP_LANG_DIR . &#039;/plugins/&#039; . $mofile;
	if ( in_array( $path, $cached_mofiles, true ) ) {
		return $path;
	}

	$path = WP_LANG_DIR . &#039;/themes/&#039; . $mofile;
	if ( in_array( $path, $cached_mofiles, true ) ) {
		return $path;
	}

	return false;
}

/**
 * Allows multiple block styles.
 *
 * @since 5.9.0
 * @deprecated 6.1.0
 *
 * @param array $metadata Metadata for registering a block type.
 * @return array Metadata for registering a block type.
 */
function _wp_multiple_block_styles( $metadata ) {
	_deprecated_function( __FUNCTION__, &#039;6.1.0&#039; );
	return $metadata;
}

/**
 * Generates an inline style for a typography feature e.g. text decoration,
 * text transform, and font style.
 *
 * @since 5.8.0
 * @access private
 * @deprecated 6.1.0 Use wp_style_engine_get_styles() introduced in 6.1.0.
 *
 * @see wp_style_engine_get_styles()
 *
 * @param array  $attributes   Block&#039;s attributes.
 * @param string $feature      Key for the feature within the typography styles.
 * @param string $css_property Slug for the CSS property the inline style sets.
 * @return string CSS inline style.
 */
function wp_typography_get_css_variable_inline_style( $attributes, $feature, $css_property ) {
	_deprecated_function( __FUNCTION__, &#039;6.1.0&#039;, &#039;wp_style_engine_get_styles()&#039; );

	// Retrieve current attribute value or skip if not found.
	$style_value = _wp_array_get( $attributes, array( &#039;style&#039;, &#039;typography&#039;, $feature ), false );
	if ( ! $style_value ) {
		return;
	}

	// If we don&#039;t have a preset CSS variable, we&#039;ll assume it&#039;s a regular CSS value.
	if ( ! str_contains( $style_value, &quot;var:preset|{$css_property}|&quot; ) ) {
		return sprintf( &#039;%s:%s;&#039;, $css_property, $style_value );
	}

	/*
	 * We have a preset CSS variable as the style.
	 * Get the style value from the string and return CSS style.
	 */
	$index_to_splice = strrpos( $style_value, &#039;|&#039; ) + 1;
	$slug            = substr( $style_value, $index_to_splice );

	// Return the actual CSS inline style e.g. `text-decoration:var(--wp--preset--text-decoration--underline);`.
	return sprintf( &#039;%s:var(--wp--preset--%s--%s);&#039;, $css_property, $css_property, $slug );
}

/**
 * Determines whether global terms are enabled.
 *
 * @since 3.0.0
 * @since 6.1.0 This function now always returns false.
 * @deprecated 6.1.0
 *
 * @return bool Always returns false.
 */
function global_terms_enabled() {
	_deprecated_function( __FUNCTION__, &#039;6.1.0&#039; );

	return false;
}

/**
 * Filter the SQL clauses of an attachment query to include filenames.
 *
 * @since 4.7.0
 * @deprecated 6.0.3
 * @access private
 *
 * @param array $clauses An array including WHERE, GROUP BY, JOIN, ORDER BY,
 *                       DISTINCT, fields (SELECT), and LIMITS clauses.
 * @return array The unmodified clauses.
 */
function _filter_query_attachment_filenames( $clauses ) {
	_deprecated_function( __FUNCTION__, &#039;6.0.3&#039;, &#039;add_filter( &quot;wp_allow_query_attachment_by_filename&quot;, &quot;__return_true&quot; )&#039; );
	remove_filter( &#039;posts_clauses&#039;, __FUNCTION__ );
	return $clauses;
}

/**
 * Retrieves a page given its title.
 *
 * If more than one post uses the same title, the post with the smallest ID will be returned.
 * Be careful: in case of more than one post having the same title, it will check the oldest
 * publication date, not the smallest ID.
 *
 * Because this function uses the MySQL &#039;=&#039; comparison, $page_title will usually be matched
 * as case-insensitive with default collation.
 *
 * @since 2.1.0
 * @since 3.0.0 The `$post_type` parameter was added.
 * @deprecated 6.2.0 Use WP_Query.
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param string       $page_title Page title.
 * @param string       $output     Optional. The required return type. One of OBJECT, ARRAY_A, or ARRAY_N, which
 *                                 correspond to a WP_Post object, an associative array, or a numeric array,
 *                                 respectively. Default OBJECT.
 * @param string|array $post_type  Optional. Post type or array of post types. Default &#039;page&#039;.
 * @return WP_Post|array|null WP_Post (or array) on success, or null on failure.
 */
function get_page_by_title( $page_title, $output = OBJECT, $post_type = &#039;page&#039; ) {
	_deprecated_function( __FUNCTION__, &#039;6.2.0&#039;, &#039;WP_Query&#039; );
	global $wpdb;

	if ( is_array( $post_type ) ) {
		$post_type           = esc_sql( $post_type );
		$post_type_in_string = &quot;&#039;&quot; . implode( &quot;&#039;,&#039;&quot;, $post_type ) . &quot;&#039;&quot;;
		$sql                 = $wpdb-&gt;prepare(
			&quot;SELECT ID
			FROM $wpdb-&gt;posts
			WHERE post_title = %s
			AND post_type IN ($post_type_in_string)&quot;,
			$page_title
		);
	} else {
		$sql = $wpdb-&gt;prepare(
			&quot;SELECT ID
			FROM $wpdb-&gt;posts
			WHERE post_title = %s
			AND post_type = %s&quot;,
			$page_title,
			$post_type
		);
	}

	$page = $wpdb-&gt;get_var( $sql );

	if ( $page ) {
		return get_post( $page, $output );
	}

	return null;
}

/**
 * Returns the correct template for the site&#039;s home page.
 *
 * @access private
 * @since 6.0.0
 * @deprecated 6.2.0 Site Editor&#039;s server-side redirect for missing postType and postId
 *                   query args is removed. Thus, this function is no longer used.
 *
 * @return array|null A template object, or null if none could be found.
 */
function _resolve_home_block_template() {
	_deprecated_function( __FUNCTION__, &#039;6.2.0&#039; );

	$show_on_front = get_option( &#039;show_on_front&#039; );
	$front_page_id = get_option( &#039;page_on_front&#039; );

	if ( &#039;page&#039; === $show_on_front &amp;&amp; $front_page_id ) {
		return array(
				&#039;postType&#039; =&gt; &#039;page&#039;,
				&#039;postId&#039;   =&gt; $front_page_id,
		);
	}

	$hierarchy = array( &#039;front-page&#039;, &#039;home&#039;, &#039;index&#039; );
	$template  = resolve_block_template( &#039;home&#039;, $hierarchy, &#039;&#039; );

	if ( ! $template ) {
		return null;
	}

	return array(
			&#039;postType&#039; =&gt; &#039;wp_template&#039;,
			&#039;postId&#039;   =&gt; $template-&gt;id,
	);
}

/**
 * Displays the link to the Windows Live Writer manifest file.
 *
 * @link https://msdn.microsoft.com/en-us/library/bb463265.aspx
 * @since 2.3.1
 * @deprecated 6.3.0 WLW manifest is no longer in use and no longer included in core,
 *                   so the output from this function is removed.
 */
function wlwmanifest_link() {
	_deprecated_function( __FUNCTION__, &#039;6.3.0&#039; );
}

/**
 * Queues comments for metadata lazy-loading.
 *
 * @since 4.5.0
 * @deprecated 6.3.0 Use wp_lazyload_comment_meta() instead.
 *
 * @param WP_Comment[] $comments Array of comment objects.
 */
function wp_queue_comments_for_comment_meta_lazyload( $comments ) {
	_deprecated_function( __FUNCTION__, &#039;6.3.0&#039;, &#039;wp_lazyload_comment_meta()&#039; );
	// Don&#039;t use `wp_list_pluck()` to avoid by-reference manipulation.
	$comment_ids = array();
	if ( is_array( $comments ) ) {
		foreach ( $comments as $comment ) {
			if ( $comment instanceof WP_Comment ) {
				$comment_ids[] = $comment-&gt;comment_ID;
			}
		}
	}

	wp_lazyload_comment_meta( $comment_ids );
}

/**
 * Gets the default value to use for a `loading` attribute on an element.
 *
 * This function should only be called for a tag and context if lazy-loading is generally enabled.
 *
 * The function usually returns &#039;lazy&#039;, but uses certain heuristics to guess whether the current element is likely to
 * appear above the fold, in which case it returns a boolean `false`, which will lead to the `loading` attribute being
 * omitted on the element. The purpose of this refinement is to avoid lazy-loading elements that are within the initial
 * viewport, which can have a negative performance impact.
 *
 * Under the hood, the function uses {@see wp_increase_content_media_count()} every time it is called for an element
 * within the main content. If the element is the very first content element, the `loading` attribute will be omitted.
 * This default threshold of 3 content elements to omit the `loading` attribute for can be customized using the
 * {@see &#039;wp_omit_loading_attr_threshold&#039;} filter.
 *
 * @since 5.9.0
 * @deprecated 6.3.0 Use wp_get_loading_optimization_attributes() instead.
 * @see wp_get_loading_optimization_attributes()
 *
 * @global WP_Query $wp_query WordPress Query object.
 *
 * @param string $context Context for the element for which the `loading` attribute value is requested.
 * @return string|bool The default `loading` attribute value. Either &#039;lazy&#039;, &#039;eager&#039;, or a boolean `false`, to indicate
 *                     that the `loading` attribute should be skipped.
 */
function wp_get_loading_attr_default( $context ) {
	_deprecated_function( __FUNCTION__, &#039;6.3.0&#039;, &#039;wp_get_loading_optimization_attributes()&#039; );
	global $wp_query;

	// Skip lazy-loading for the overall block template, as it is handled more granularly.
	if ( &#039;template&#039; === $context ) {
		return false;
	}

	/*
	 * Do not lazy-load images in the header block template part, as they are likely above the fold.
	 * For classic themes, this is handled in the condition below using the &#039;get_header&#039; action.
	 */
	$header_area = WP_TEMPLATE_PART_AREA_HEADER;
	if ( &quot;template_part_{$header_area}&quot; === $context ) {
		return false;
	}

	// Special handling for programmatically created image tags.
	if ( &#039;the_post_thumbnail&#039; === $context || &#039;wp_get_attachment_image&#039; === $context ) {
		/*
		 * Skip programmatically created images within post content as they need to be handled together with the other
		 * images within the post content.
		 * Without this clause, they would already be counted below which skews the number and can result in the first
		 * post content image being lazy-loaded only because there are images elsewhere in the post content.
		 */
		if ( doing_filter( &#039;the_content&#039; ) ) {
			return false;
		}

		// Conditionally skip lazy-loading on images before the loop.
		if (
			// Only apply for main query but before the loop.
			$wp_query-&gt;before_loop &amp;&amp; $wp_query-&gt;is_main_query()
			/*
			 * Any image before the loop, but after the header has started should not be lazy-loaded,
			 * except when the footer has already started which can happen when the current template
			 * does not include any loop.
			 */
			&amp;&amp; did_action( &#039;get_header&#039; ) &amp;&amp; ! did_action( &#039;get_footer&#039; )
		) {
			return false;
		}
	}

	/*
	 * The first elements in &#039;the_content&#039; or &#039;the_post_thumbnail&#039; should not be lazy-loaded,
	 * as they are likely above the fold.
	 */
	if ( &#039;the_content&#039; === $context || &#039;the_post_thumbnail&#039; === $context ) {
		// Only elements within the main query loop have special handling.
		if ( is_admin() || ! in_the_loop() || ! is_main_query() ) {
			return &#039;lazy&#039;;
		}

		// Increase the counter since this is a main query content element.
		$content_media_count = wp_increase_content_media_count();

		// If the count so far is below the threshold, return `false` so that the `loading` attribute is omitted.
		if ( $content_media_count &lt;= wp_omit_loading_attr_threshold() ) {
			return false;
		}

		// For elements after the threshold, lazy-load them as usual.
		return &#039;lazy&#039;;
	}

	// Lazy-load by default for any unknown context.
	return &#039;lazy&#039;;
}

/**
 * Adds `loading` attribute to an `img` HTML tag.
 *
 * @since 5.5.0
 * @deprecated 6.3.0 Use wp_img_tag_add_loading_optimization_attrs() instead.
 * @see wp_img_tag_add_loading_optimization_attrs()
 *
 * @param string $image   The HTML `img` tag where the attribute should be added.
 * @param string $context Additional context to pass to the filters.
 * @return string Converted `img` tag with `loading` attribute added.
 */
function wp_img_tag_add_loading_attr( $image, $context ) {
	_deprecated_function( __FUNCTION__, &#039;6.3.0&#039;, &#039;wp_img_tag_add_loading_optimization_attrs()&#039; );
	/*
	 * Get loading attribute value to use. This must occur before the conditional check below so that even images that
	 * are ineligible for being lazy-loaded are considered.
	 */
	$value = wp_get_loading_attr_default( $context );

	// Images should have source and dimension attributes for the `loading` attribute to be added.
	if ( ! str_contains( $image, &#039; src=&quot;&#039; ) || ! str_contains( $image, &#039; width=&quot;&#039; ) || ! str_contains( $image, &#039; height=&quot;&#039; ) ) {
		return $image;
	}

	/** This filter is documented in wp-admin/includes/media.php */
	$value = apply_filters( &#039;wp_img_tag_add_loading_attr&#039;, $value, $image, $context );

	if ( $value ) {
		if ( ! in_array( $value, array( &#039;lazy&#039;, &#039;eager&#039; ), true ) ) {
			$value = &#039;lazy&#039;;
		}

		return str_replace( &#039;&lt;img&#039;, &#039;&lt;img loading=&quot;&#039; . esc_attr( $value ) . &#039;&quot;&#039;, $image );
	}

	return $image;
}

/**
 * Takes input from [0, n] and returns it as [0, 1].
 *
 * Direct port of TinyColor&#039;s function, lightly simplified to maintain
 * consistency with TinyColor.
 *
 * @link https://github.com/bgrins/TinyColor
 *
 * @since 5.8.0
 * @deprecated 6.3.0
 *
 * @access private
 *
 * @param mixed $n   Number of unknown type.
 * @param int   $max Upper value of the range to bound to.
 * @return float Value in the range [0, 1].
 */
function wp_tinycolor_bound01( $n, $max ) {
	_deprecated_function( __FUNCTION__, &#039;6.3.0&#039; );
	if ( &#039;string&#039; === gettype( $n ) &amp;&amp; str_contains( $n, &#039;.&#039; ) &amp;&amp; 1 === (float) $n ) {
		$n = &#039;100%&#039;;
	}

	$n = min( $max, max( 0, (float) $n ) );

	// Automatically convert percentage into number.
	if ( &#039;string&#039; === gettype( $n ) &amp;&amp; str_contains( $n, &#039;%&#039; ) ) {
		$n = (int) ( $n * $max ) / 100;
	}

	// Handle floating point rounding errors.
	if ( ( abs( $n - $max ) &lt; 0.000001 ) ) {
		return 1.0;
	}

	// Convert into [0, 1] range if it isn&#039;t already.
	return ( $n % $max ) / (float) $max;
}

/**
 * Direct port of tinycolor&#039;s boundAlpha function to maintain consistency with
 * how tinycolor works.
 *
 * @link https://github.com/bgrins/TinyColor
 *
 * @since 5.9.0
 * @deprecated 6.3.0
 *
 * @access private
 *
 * @param mixed $n Number of unknown type.
 * @return float Value in the range [0,1].
 */
function _wp_tinycolor_bound_alpha( $n ) {
	_deprecated_function( __FUNCTION__, &#039;6.3.0&#039; );

	if ( is_numeric( $n ) ) {
		$n = (float) $n;
		if ( $n &gt;= 0 &amp;&amp; $n &lt;= 1 ) {
			return $n;
		}
	}
	return 1;
}

/**
 * Rounds and converts values of an RGB object.
 *
 * Direct port of TinyColor&#039;s function, lightly simplified to maintain
 * consistency with TinyColor.
 *
 * @link https://github.com/bgrins/TinyColor
 *
 * @since 5.8.0
 * @deprecated 6.3.0
 *
 * @access private
 *
 * @param array $rgb_color RGB object.
 * @return array Rounded and converted RGB object.
 */
function wp_tinycolor_rgb_to_rgb( $rgb_color ) {
	_deprecated_function( __FUNCTION__, &#039;6.3.0&#039; );

	return array(
		&#039;r&#039; =&gt; wp_tinycolor_bound01( $rgb_color[&#039;r&#039;], 255 ) * 255,
		&#039;g&#039; =&gt; wp_tinycolor_bound01( $rgb_color[&#039;g&#039;], 255 ) * 255,
		&#039;b&#039; =&gt; wp_tinycolor_bound01( $rgb_color[&#039;b&#039;], 255 ) * 255,
	);
}

/**
 * Helper function for hsl to rgb conversion.
 *
 * Direct port of TinyColor&#039;s function, lightly simplified to maintain
 * consistency with TinyColor.
 *
 * @link https://github.com/bgrins/TinyColor
 *
 * @since 5.8.0
 * @deprecated 6.3.0
 *
 * @access private
 *
 * @param float $p first component.
 * @param float $q second component.
 * @param float $t third component.
 * @return float R, G, or B component.
 */
function wp_tinycolor_hue_to_rgb( $p, $q, $t ) {
	_deprecated_function( __FUNCTION__, &#039;6.3.0&#039; );

	if ( $t &lt; 0 ) {
		++$t;
	}
	if ( $t &gt; 1 ) {
		--$t;
	}
	if ( $t &lt; 1 / 6 ) {
		return $p + ( $q - $p ) * 6 * $t;
	}
	if ( $t &lt; 1 / 2 ) {
		return $q;
	}
	if ( $t &lt; 2 / 3 ) {
		return $p + ( $q - $p ) * ( 2 / 3 - $t ) * 6;
	}
	return $p;
}

/**
 * Converts an HSL object to an RGB object with converted and rounded values.
 *
 * Direct port of TinyColor&#039;s function, lightly simplified to maintain
 * consistency with TinyColor.
 *
 * @link https://github.com/bgrins/TinyColor
 *
 * @since 5.8.0
 * @deprecated 6.3.0
 *
 * @access private
 *
 * @param array $hsl_color HSL object.
 * @return array Rounded and converted RGB object.
 */
function wp_tinycolor_hsl_to_rgb( $hsl_color ) {
	_deprecated_function( __FUNCTION__, &#039;6.3.0&#039; );

	$h = wp_tinycolor_bound01( $hsl_color[&#039;h&#039;], 360 );
	$s = wp_tinycolor_bound01( $hsl_color[&#039;s&#039;], 100 );
	$l = wp_tinycolor_bound01( $hsl_color[&#039;l&#039;], 100 );

	if ( 0 === $s ) {
		// Achromatic.
		$r = $l;
		$g = $l;
		$b = $l;
	} else {
		$q = $l &lt; 0.5 ? $l * ( 1 + $s ) : $l + $s - $l * $s;
		$p = 2 * $l - $q;
		$r = wp_tinycolor_hue_to_rgb( $p, $q, $h + 1 / 3 );
		$g = wp_tinycolor_hue_to_rgb( $p, $q, $h );
		$b = wp_tinycolor_hue_to_rgb( $p, $q, $h - 1 / 3 );
	}

	return array(
		&#039;r&#039; =&gt; $r * 255,
		&#039;g&#039; =&gt; $g * 255,
		&#039;b&#039; =&gt; $b * 255,
	);
}

/**
 * Parses hex, hsl, and rgb CSS strings using the same regex as TinyColor v1.4.2
 * used in the JavaScript. Only colors output from react-color are implemented.
 *
 * Direct port of TinyColor&#039;s function, lightly simplified to maintain
 * consistency with TinyColor.
 *
 * @link https://github.com/bgrins/TinyColor
 * @link https://github.com/casesandberg/react-color/
 *
 * @since 5.8.0
 * @since 5.9.0 Added alpha processing.
 * @deprecated 6.3.0
 *
 * @access private
 *
 * @param string $color_str CSS color string.
 * @return array RGB object.
 */
function wp_tinycolor_string_to_rgb( $color_str ) {
	_deprecated_function( __FUNCTION__, &#039;6.3.0&#039; );

	$color_str = strtolower( trim( $color_str ) );

	$css_integer = &#039;[-\\+]?\\d+%?&#039;;
	$css_number  = &#039;[-\\+]?\\d*\\.\\d+%?&#039;;

	$css_unit = &#039;(?:&#039; . $css_number . &#039;)|(?:&#039; . $css_integer . &#039;)&#039;;

	$permissive_match3 = &#039;[\\s|\\(]+(&#039; . $css_unit . &#039;)[,|\\s]+(&#039; . $css_unit . &#039;)[,|\\s]+(&#039; . $css_unit . &#039;)\\s*\\)?&#039;;
	$permissive_match4 = &#039;[\\s|\\(]+(&#039; . $css_unit . &#039;)[,|\\s]+(&#039; . $css_unit . &#039;)[,|\\s]+(&#039; . $css_unit . &#039;)[,|\\s]+(&#039; . $css_unit . &#039;)\\s*\\)?&#039;;

	$rgb_regexp = &#039;/^rgb&#039; . $permissive_match3 . &#039;$/&#039;;
	if ( preg_match( $rgb_regexp, $color_str, $match ) ) {
		$rgb = wp_tinycolor_rgb_to_rgb(
			array(
				&#039;r&#039; =&gt; $match[1],
				&#039;g&#039; =&gt; $match[2],
				&#039;b&#039; =&gt; $match[3],
			)
		);

		$rgb[&#039;a&#039;] = 1;

		return $rgb;
	}

	$rgba_regexp = &#039;/^rgba&#039; . $permissive_match4 . &#039;$/&#039;;
	if ( preg_match( $rgba_regexp, $color_str, $match ) ) {
		$rgb = wp_tinycolor_rgb_to_rgb(
			array(
				&#039;r&#039; =&gt; $match[1],
				&#039;g&#039; =&gt; $match[2],
				&#039;b&#039; =&gt; $match[3],
			)
		);

		$rgb[&#039;a&#039;] = _wp_tinycolor_bound_alpha( $match[4] );

		return $rgb;
	}

	$hsl_regexp = &#039;/^hsl&#039; . $permissive_match3 . &#039;$/&#039;;
	if ( preg_match( $hsl_regexp, $color_str, $match ) ) {
		$rgb = wp_tinycolor_hsl_to_rgb(
			array(
				&#039;h&#039; =&gt; $match[1],
				&#039;s&#039; =&gt; $match[2],
				&#039;l&#039; =&gt; $match[3],
			)
		);

		$rgb[&#039;a&#039;] = 1;

		return $rgb;
	}

	$hsla_regexp = &#039;/^hsla&#039; . $permissive_match4 . &#039;$/&#039;;
	if ( preg_match( $hsla_regexp, $color_str, $match ) ) {
		$rgb = wp_tinycolor_hsl_to_rgb(
			array(
				&#039;h&#039; =&gt; $match[1],
				&#039;s&#039; =&gt; $match[2],
				&#039;l&#039; =&gt; $match[3],
			)
		);

		$rgb[&#039;a&#039;] = _wp_tinycolor_bound_alpha( $match[4] );

		return $rgb;
	}

	$hex8_regexp = &#039;/^#?([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})$/&#039;;
	if ( preg_match( $hex8_regexp, $color_str, $match ) ) {
		$rgb = wp_tinycolor_rgb_to_rgb(
			array(
				&#039;r&#039; =&gt; base_convert( $match[1], 16, 10 ),
				&#039;g&#039; =&gt; base_convert( $match[2], 16, 10 ),
				&#039;b&#039; =&gt; base_convert( $match[3], 16, 10 ),
			)
		);

		$rgb[&#039;a&#039;] = _wp_tinycolor_bound_alpha(
			base_convert( $match[4], 16, 10 ) / 255
		);

		return $rgb;
	}

	$hex6_regexp = &#039;/^#?([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})$/&#039;;
	if ( preg_match( $hex6_regexp, $color_str, $match ) ) {
		$rgb = wp_tinycolor_rgb_to_rgb(
			array(
				&#039;r&#039; =&gt; base_convert( $match[1], 16, 10 ),
				&#039;g&#039; =&gt; base_convert( $match[2], 16, 10 ),
				&#039;b&#039; =&gt; base_convert( $match[3], 16, 10 ),
			)
		);

		$rgb[&#039;a&#039;] = 1;

		return $rgb;
	}

	$hex4_regexp = &#039;/^#?([0-9a-fA-F]{1})([0-9a-fA-F]{1})([0-9a-fA-F]{1})([0-9a-fA-F]{1})$/&#039;;
	if ( preg_match( $hex4_regexp, $color_str, $match ) ) {
		$rgb = wp_tinycolor_rgb_to_rgb(
			array(
				&#039;r&#039; =&gt; base_convert( $match[1] . $match[1], 16, 10 ),
				&#039;g&#039; =&gt; base_convert( $match[2] . $match[2], 16, 10 ),
				&#039;b&#039; =&gt; base_convert( $match[3] . $match[3], 16, 10 ),
			)
		);

		$rgb[&#039;a&#039;] = _wp_tinycolor_bound_alpha(
			base_convert( $match[4] . $match[4], 16, 10 ) / 255
		);

		return $rgb;
	}

	$hex3_regexp = &#039;/^#?([0-9a-fA-F]{1})([0-9a-fA-F]{1})([0-9a-fA-F]{1})$/&#039;;
	if ( preg_match( $hex3_regexp, $color_str, $match ) ) {
		$rgb = wp_tinycolor_rgb_to_rgb(
			array(
				&#039;r&#039; =&gt; base_convert( $match[1] . $match[1], 16, 10 ),
				&#039;g&#039; =&gt; base_convert( $match[2] . $match[2], 16, 10 ),
				&#039;b&#039; =&gt; base_convert( $match[3] . $match[3], 16, 10 ),
			)
		);

		$rgb[&#039;a&#039;] = 1;

		return $rgb;
	}

	/*
	 * The JS color picker considers the string &quot;transparent&quot; to be a hex value,
	 * so we need to handle it here as a special case.
	 */
	if ( &#039;transparent&#039; === $color_str ) {
		return array(
			&#039;r&#039; =&gt; 0,
			&#039;g&#039; =&gt; 0,
			&#039;b&#039; =&gt; 0,
			&#039;a&#039; =&gt; 0,
		);
	}
}

/**
 * Returns the prefixed id for the duotone filter for use as a CSS id.
 *
 * @since 5.9.1
 * @deprecated 6.3.0
 *
 * @access private
 *
 * @param array $preset Duotone preset value as seen in theme.json.
 * @return string Duotone filter CSS id.
 */
function wp_get_duotone_filter_id( $preset ) {
	_deprecated_function( __FUNCTION__, &#039;6.3.0&#039; );
	return WP_Duotone::get_filter_id_from_preset( $preset );
}

/**
 * Returns the CSS filter property url to reference the rendered SVG.
 *
 * @since 5.9.0
 * @since 6.1.0 Allow unset for preset colors.
 * @deprecated 6.3.0
 *
 * @access private
 *
 * @param array $preset Duotone preset value as seen in theme.json.
 * @return string Duotone CSS filter property url value.
 */
function wp_get_duotone_filter_property( $preset ) {
	_deprecated_function( __FUNCTION__, &#039;6.3.0&#039; );
	return WP_Duotone::get_filter_css_property_value_from_preset( $preset );
}

/**
 * Returns the duotone filter SVG string for the preset.
 *
 * @since 5.9.1
 * @deprecated 6.3.0 Use WP_Duotone::get_filter_svg_from_preset() instead.
 *
 * @access private
 *
 * @param array $preset Duotone preset value as seen in theme.json.
 * @return string Duotone SVG filter.
 */
function wp_get_duotone_filter_svg( $preset ) {
	_deprecated_function( __FUNCTION__, &#039;6.3.0&#039;, &#039;WP_Duotone::get_filter_svg_from_preset()&#039; );
	return WP_Duotone::get_filter_svg_from_preset( $preset );
}

/**
 * Registers the style and colors block attributes for block types that support it.
 *
 * @since 5.8.0
 * @deprecated 6.3.0 Use WP_Duotone::register_duotone_support() instead.
 *
 * @access private
 *
 * @param WP_Block_Type $block_type Block Type.
 */
function wp_register_duotone_support( $block_type ) {
	_deprecated_function( __FUNCTION__, &#039;6.3.0&#039;, &#039;WP_Duotone::register_duotone_support()&#039; );
	return WP_Duotone::register_duotone_support( $block_type );
}

/**
 * Renders out the duotone stylesheet and SVG.
 *
 * @since 5.8.0
 * @since 6.1.0 Allow unset for preset colors.
 * @deprecated 6.3.0 Use WP_Duotone::render_duotone_support() instead.
 *
 * @access private
 *
 * @param string $block_content Rendered block content.
 * @param array  $block         Block object.
 * @return string Filtered block content.
 */
function wp_render_duotone_support( $block_content, $block ) {
	_deprecated_function( __FUNCTION__, &#039;6.3.0&#039;, &#039;WP_Duotone::render_duotone_support()&#039; );
	$wp_block = new WP_Block( $block );
	return WP_Duotone::render_duotone_support( $block_content, $block, $wp_block );
}

/**
 * Returns a string containing the SVGs to be referenced as filters (duotone).
 *
 * @since 5.9.1
 * @deprecated 6.3.0 SVG generation is handled on a per-block basis in block supports.
 *
 * @return string
 */
function wp_get_global_styles_svg_filters() {
	_deprecated_function( __FUNCTION__, &#039;6.3.0&#039; );

	/*
	 * Ignore cache when the development mode is set to &#039;theme&#039;, so it doesn&#039;t interfere with the theme
	 * developer&#039;s workflow.
	 */
	$can_use_cached = ! wp_is_development_mode( &#039;theme&#039; );
	$cache_group    = &#039;theme_json&#039;;
	$cache_key      = &#039;wp_get_global_styles_svg_filters&#039;;
	if ( $can_use_cached ) {
		$cached = wp_cache_get( $cache_key, $cache_group );
		if ( $cached ) {
			return $cached;
		}
	}

	$supports_theme_json = wp_theme_has_theme_json();

	$origins = array( &#039;default&#039;, &#039;theme&#039;, &#039;custom&#039; );
	if ( ! $supports_theme_json ) {
		$origins = array( &#039;default&#039; );
	}

	$tree = WP_Theme_JSON_Resolver::get_merged_data();
	$svgs = $tree-&gt;get_svg_filters( $origins );

	if ( $can_use_cached ) {
		wp_cache_set( $cache_key, $svgs, $cache_group );
	}

	return $svgs;
}

/**
 * Renders the SVG filters supplied by theme.json.
 *
 * Note that this doesn&#039;t render the per-block user-defined
 * filters which are handled by wp_render_duotone_support,
 * but it should be rendered before the filtered content
 * in the body to satisfy Safari&#039;s rendering quirks.
 *
 * @since 5.9.1
 * @deprecated 6.3.0 SVG generation is handled on a per-block basis in block supports.
 */
function wp_global_styles_render_svg_filters() {
	_deprecated_function( __FUNCTION__, &#039;6.3.0&#039; );

	/*
	 * When calling via the in_admin_header action, we only want to render the
	 * SVGs on block editor pages.
	 */
	if (
		is_admin() &amp;&amp;
		! get_current_screen()-&gt;is_block_editor()
	) {
		return;
	}

	$filters = wp_get_global_styles_svg_filters();
	if ( ! empty( $filters ) ) {
		echo $filters;
	}
}

/**
 * Build an array with CSS classes and inline styles defining the colors
 * which will be applied to the navigation markup in the front-end.
 *
 * @since 5.9.0
 * @deprecated 6.3.0 This was removed from the Navigation Submenu block in favour of `wp_apply_colors_support()`.
 *                   `wp_apply_colors_support()` returns an array with similar class and style values,
 *                   but with different keys: `class` and `style`.
 *
 * @param  array $context     Navigation block context.
 * @param  array $attributes  Block attributes.
 * @param  bool  $is_sub_menu Whether the block is a sub-menu.
 * @return array Colors CSS classes and inline styles.
 */
function block_core_navigation_submenu_build_css_colors( $context, $attributes, $is_sub_menu = false ) {
	_deprecated_function( __FUNCTION__, &#039;6.3.0&#039; );
	$colors = array(
		&#039;css_classes&#039;   =&gt; array(),
		&#039;inline_styles&#039; =&gt; &#039;&#039;,
	);

	// Text color.
	$named_text_color  = null;
	$custom_text_color = null;

	if ( $is_sub_menu &amp;&amp; array_key_exists( &#039;customOverlayTextColor&#039;, $context ) ) {
		$custom_text_color = $context[&#039;customOverlayTextColor&#039;];
	} elseif ( $is_sub_menu &amp;&amp; array_key_exists( &#039;overlayTextColor&#039;, $context ) ) {
		$named_text_color = $context[&#039;overlayTextColor&#039;];
	} elseif ( array_key_exists( &#039;customTextColor&#039;, $context ) ) {
		$custom_text_color = $context[&#039;customTextColor&#039;];
	} elseif ( array_key_exists( &#039;textColor&#039;, $context ) ) {
		$named_text_color = $context[&#039;textColor&#039;];
	} elseif ( isset( $context[&#039;style&#039;][&#039;color&#039;][&#039;text&#039;] ) ) {
		$custom_text_color = $context[&#039;style&#039;][&#039;color&#039;][&#039;text&#039;];
	}

	// If has text color.
	if ( ! is_null( $named_text_color ) ) {
		// Add the color class.
		array_push( $colors[&#039;css_classes&#039;], &#039;has-text-color&#039;, sprintf( &#039;has-%s-color&#039;, $named_text_color ) );
	} elseif ( ! is_null( $custom_text_color ) ) {
		// Add the custom color inline style.
		$colors[&#039;css_classes&#039;][]  = &#039;has-text-color&#039;;
		$colors[&#039;inline_styles&#039;] .= sprintf( &#039;color: %s;&#039;, $custom_text_color );
	}

	// Background color.
	$named_background_color  = null;
	$custom_background_color = null;

	if ( $is_sub_menu &amp;&amp; array_key_exists( &#039;customOverlayBackgroundColor&#039;, $context ) ) {
		$custom_background_color = $context[&#039;customOverlayBackgroundColor&#039;];
	} elseif ( $is_sub_menu &amp;&amp; array_key_exists( &#039;overlayBackgroundColor&#039;, $context ) ) {
		$named_background_color = $context[&#039;overlayBackgroundColor&#039;];
	} elseif ( array_key_exists( &#039;customBackgroundColor&#039;, $context ) ) {
		$custom_background_color = $context[&#039;customBackgroundColor&#039;];
	} elseif ( array_key_exists( &#039;backgroundColor&#039;, $context ) ) {
		$named_background_color = $context[&#039;backgroundColor&#039;];
	} elseif ( isset( $context[&#039;style&#039;][&#039;color&#039;][&#039;background&#039;] ) ) {
		$custom_background_color = $context[&#039;style&#039;][&#039;color&#039;][&#039;background&#039;];
	}

	// If has background color.
	if ( ! is_null( $named_background_color ) ) {
		// Add the background-color class.
		array_push( $colors[&#039;css_classes&#039;], &#039;has-background&#039;, sprintf( &#039;has-%s-background-color&#039;, $named_background_color ) );
	} elseif ( ! is_null( $custom_background_color ) ) {
		// Add the custom background-color inline style.
		$colors[&#039;css_classes&#039;][]  = &#039;has-background&#039;;
		$colors[&#039;inline_styles&#039;] .= sprintf( &#039;background-color: %s;&#039;, $custom_background_color );
	}

	return $colors;
}

/**
 * Runs the theme.json webfonts handler.
 *
 * Using `WP_Theme_JSON_Resolver`, it gets the fonts defined
 * in the `theme.json` for the current selection and style
 * variations, validates the font-face properties, generates
 * the &#039;@font-face&#039; style declarations, and then enqueues the
 * styles for both the editor and front-end.
 *
 * Design Notes:
 * This is not a public API, but rather an internal handler.
 * A future public Webfonts API will replace this stopgap code.
 *
 * This code design is intentional.
 *    a. It hides the inner-workings.
 *    b. It does not expose API ins or outs for consumption.
 *    c. It only works with a theme&#039;s `theme.json`.
 *
 * Why?
 *    a. To avoid backwards-compatibility issues when
 *       the Webfonts API is introduced in Core.
 *    b. To make `fontFace` declarations in `theme.json` work.
 *
 * @link  https://github.com/WordPress/gutenberg/issues/40472
 *
 * @since 6.0.0
 * @deprecated 6.4.0 Use wp_print_font_faces() instead.
 * @access private
 */
function _wp_theme_json_webfonts_handler() {
	_deprecated_function( __FUNCTION__, &#039;6.4.0&#039;, &#039;wp_print_font_faces&#039; );

	// Block themes are unavailable during installation.
	if ( wp_installing() ) {
		return;
	}

	if ( ! wp_theme_has_theme_json() ) {
		return;
	}

	// Webfonts to be processed.
	$registered_webfonts = array();

	/**
	 * Gets the webfonts from theme.json.
	 *
	 * @since 6.0.0
	 *
	 * @return array Array of defined webfonts.
	 */
	$fn_get_webfonts_from_theme_json = static function() {
		// Get settings from theme.json.
		$settings = WP_Theme_JSON_Resolver::get_merged_data()-&gt;get_settings();

		// If in the editor, add webfonts defined in variations.
		if ( is_admin() || wp_is_rest_endpoint() ) {
			$variations = WP_Theme_JSON_Resolver::get_style_variations();
			foreach ( $variations as $variation ) {
				// Skip if fontFamilies are not defined in the variation.
				if ( empty( $variation[&#039;settings&#039;][&#039;typography&#039;][&#039;fontFamilies&#039;] ) ) {
					continue;
				}

				// Initialize the array structure.
				if ( empty( $settings[&#039;typography&#039;] ) ) {
					$settings[&#039;typography&#039;] = array();
				}
				if ( empty( $settings[&#039;typography&#039;][&#039;fontFamilies&#039;] ) ) {
					$settings[&#039;typography&#039;][&#039;fontFamilies&#039;] = array();
				}
				if ( empty( $settings[&#039;typography&#039;][&#039;fontFamilies&#039;][&#039;theme&#039;] ) ) {
					$settings[&#039;typography&#039;][&#039;fontFamilies&#039;][&#039;theme&#039;] = array();
				}

				// Combine variations with settings. Remove duplicates.
				$settings[&#039;typography&#039;][&#039;fontFamilies&#039;][&#039;theme&#039;] = array_merge( $settings[&#039;typography&#039;][&#039;fontFamilies&#039;][&#039;theme&#039;], $variation[&#039;settings&#039;][&#039;typography&#039;][&#039;fontFamilies&#039;][&#039;theme&#039;] );
				$settings[&#039;typography&#039;][&#039;fontFamilies&#039;]          = array_unique( $settings[&#039;typography&#039;][&#039;fontFamilies&#039;] );
			}
		}

		// Bail out early if there are no settings for webfonts.
		if ( empty( $settings[&#039;typography&#039;][&#039;fontFamilies&#039;] ) ) {
			return array();
		}

		$webfonts = array();

		// Look for fontFamilies.
		foreach ( $settings[&#039;typography&#039;][&#039;fontFamilies&#039;] as $font_families ) {
			foreach ( $font_families as $font_family ) {

				// Skip if fontFace is not defined.
				if ( empty( $font_family[&#039;fontFace&#039;] ) ) {
					continue;
				}

				// Skip if fontFace is not an array of webfonts.
				if ( ! is_array( $font_family[&#039;fontFace&#039;] ) ) {
					continue;
				}

				$webfonts = array_merge( $webfonts, $font_family[&#039;fontFace&#039;] );
			}
		}

		return $webfonts;
	};

	/**
	 * Transforms each &#039;src&#039; into an URI by replacing &#039;file:./&#039;
	 * placeholder from theme.json.
	 *
	 * The absolute path to the webfont file(s) cannot be defined in
	 * theme.json. `file:./` is the placeholder which is replaced by
	 * the theme&#039;s URL path to the theme&#039;s root.
	 *
	 * @since 6.0.0
	 *
	 * @param array $src Webfont file(s) `src`.
	 * @return array Webfont&#039;s `src` in URI.
	 */
	$fn_transform_src_into_uri = static function( array $src ) {
		foreach ( $src as $key =&gt; $url ) {
			// Tweak the URL to be relative to the theme root.
			if ( ! str_starts_with( $url, &#039;file:./&#039; ) ) {
				continue;
			}

			$src[ $key ] = get_theme_file_uri( str_replace( &#039;file:./&#039;, &#039;&#039;, $url ) );
		}

		return $src;
	};

	/**
	 * Converts the font-face properties (i.e. keys) into kebab-case.
	 *
	 * @since 6.0.0
	 *
	 * @param array $font_face Font face to convert.
	 * @return array Font faces with each property in kebab-case format.
	 */
	$fn_convert_keys_to_kebab_case = static function( array $font_face ) {
		foreach ( $font_face as $property =&gt; $value ) {
			$kebab_case               = _wp_to_kebab_case( $property );
			$font_face[ $kebab_case ] = $value;
			if ( $kebab_case !== $property ) {
				unset( $font_face[ $property ] );
			}
		}

		return $font_face;
	};

	/**
	 * Validates a webfont.
	 *
	 * @since 6.0.0
	 *
	 * @param array $webfont The webfont arguments.
	 * @return array|false The validated webfont arguments, or false if the webfont is invalid.
	 */
	$fn_validate_webfont = static function( $webfont ) {
		$webfont = wp_parse_args(
				$webfont,
				array(
						&#039;font-family&#039;  =&gt; &#039;&#039;,
						&#039;font-style&#039;   =&gt; &#039;normal&#039;,
						&#039;font-weight&#039;  =&gt; &#039;400&#039;,
						&#039;font-display&#039; =&gt; &#039;fallback&#039;,
						&#039;src&#039;          =&gt; array(),
				)
		);

		// Check the font-family.
		if ( empty( $webfont[&#039;font-family&#039;] ) || ! is_string( $webfont[&#039;font-family&#039;] ) ) {
			trigger_error( __( &#039;Webfont font family must be a non-empty string.&#039; ) );

			return false;
		}

		// Check that the `src` property is defined and a valid type.
		if ( empty( $webfont[&#039;src&#039;] ) || ( ! is_string( $webfont[&#039;src&#039;] ) &amp;&amp; ! is_array( $webfont[&#039;src&#039;] ) ) ) {
			trigger_error( __( &#039;Webfont src must be a non-empty string or an array of strings.&#039; ) );

			return false;
		}

		// Validate the `src` property.
		foreach ( (array) $webfont[&#039;src&#039;] as $src ) {
			if ( ! is_string( $src ) || &#039;&#039; === trim( $src ) ) {
				trigger_error( __( &#039;Each webfont src must be a non-empty string.&#039; ) );

				return false;
			}
		}

		// Check the font-weight.
		if ( ! is_string( $webfont[&#039;font-weight&#039;] ) &amp;&amp; ! is_int( $webfont[&#039;font-weight&#039;] ) ) {
			trigger_error( __( &#039;Webfont font weight must be a properly formatted string or integer.&#039; ) );

			return false;
		}

		// Check the font-display.
		if ( ! in_array( $webfont[&#039;font-display&#039;], array( &#039;auto&#039;, &#039;block&#039;, &#039;fallback&#039;, &#039;optional&#039;, &#039;swap&#039; ), true ) ) {
			$webfont[&#039;font-display&#039;] = &#039;fallback&#039;;
		}

		$valid_props = array(
				&#039;ascend-override&#039;,
				&#039;descend-override&#039;,
				&#039;font-display&#039;,
				&#039;font-family&#039;,
				&#039;font-stretch&#039;,
				&#039;font-style&#039;,
				&#039;font-weight&#039;,
				&#039;font-variant&#039;,
				&#039;font-feature-settings&#039;,
				&#039;font-variation-settings&#039;,
				&#039;line-gap-override&#039;,
				&#039;size-adjust&#039;,
				&#039;src&#039;,
				&#039;unicode-range&#039;,
		);

		foreach ( $webfont as $prop =&gt; $value ) {
			if ( ! in_array( $prop, $valid_props, true ) ) {
				unset( $webfont[ $prop ] );
			}
		}

		return $webfont;
	};

	/**
	 * Registers webfonts declared in theme.json.
	 *
	 * @since 6.0.0
	 *
	 * @uses $registered_webfonts To access and update the registered webfonts registry (passed by reference).
	 * @uses $fn_get_webfonts_from_theme_json To run the function that gets the webfonts from theme.json.
	 * @uses $fn_convert_keys_to_kebab_case To run the function that converts keys into kebab-case.
	 * @uses $fn_validate_webfont To run the function that validates each font-face (webfont) from theme.json.
	 */
	$fn_register_webfonts = static function() use ( &amp;$registered_webfonts, $fn_get_webfonts_from_theme_json, $fn_convert_keys_to_kebab_case, $fn_validate_webfont, $fn_transform_src_into_uri ) {
		$registered_webfonts = array();

		foreach ( $fn_get_webfonts_from_theme_json() as $webfont ) {
			if ( ! is_array( $webfont ) ) {
				continue;
			}

			$webfont = $fn_convert_keys_to_kebab_case( $webfont );

			$webfont = $fn_validate_webfont( $webfont );

			$webfont[&#039;src&#039;] = $fn_transform_src_into_uri( (array) $webfont[&#039;src&#039;] );

			// Skip if not valid.
			if ( empty( $webfont ) ) {
				continue;
			}

			$registered_webfonts[] = $webfont;
		}
	};

	/**
	 * Orders &#039;src&#039; items to optimize for browser support.
	 *
	 * @since 6.0.0
	 *
	 * @param array $webfont Webfont to process.
	 * @return array Ordered `src` items.
	 */
	$fn_order_src = static function( array $webfont ) {
		$src         = array();
		$src_ordered = array();

		foreach ( $webfont[&#039;src&#039;] as $url ) {
			// Add data URIs first.
			if ( str_starts_with( trim( $url ), &#039;data:&#039; ) ) {
				$src_ordered[] = array(
						&#039;url&#039;    =&gt; $url,
						&#039;format&#039; =&gt; &#039;data&#039;,
				);
				continue;
			}
			$format         = pathinfo( $url, PATHINFO_EXTENSION );
			$src[ $format ] = $url;
		}

		// Add woff2.
		if ( ! empty( $src[&#039;woff2&#039;] ) ) {
			$src_ordered[] = array(
					&#039;url&#039;    =&gt; sanitize_url( $src[&#039;woff2&#039;] ),
					&#039;format&#039; =&gt; &#039;woff2&#039;,
			);
		}

		// Add woff.
		if ( ! empty( $src[&#039;woff&#039;] ) ) {
			$src_ordered[] = array(
					&#039;url&#039;    =&gt; sanitize_url( $src[&#039;woff&#039;] ),
					&#039;format&#039; =&gt; &#039;woff&#039;,
			);
		}

		// Add ttf.
		if ( ! empty( $src[&#039;ttf&#039;] ) ) {
			$src_ordered[] = array(
					&#039;url&#039;    =&gt; sanitize_url( $src[&#039;ttf&#039;] ),
					&#039;format&#039; =&gt; &#039;truetype&#039;,
			);
		}

		// Add eot.
		if ( ! empty( $src[&#039;eot&#039;] ) ) {
			$src_ordered[] = array(
					&#039;url&#039;    =&gt; sanitize_url( $src[&#039;eot&#039;] ),
					&#039;format&#039; =&gt; &#039;embedded-opentype&#039;,
			);
		}

		// Add otf.
		if ( ! empty( $src[&#039;otf&#039;] ) ) {
			$src_ordered[] = array(
					&#039;url&#039;    =&gt; sanitize_url( $src[&#039;otf&#039;] ),
					&#039;format&#039; =&gt; &#039;opentype&#039;,
			);
		}
		$webfont[&#039;src&#039;] = $src_ordered;

		return $webfont;
	};

	/**
	 * Compiles the &#039;src&#039; into valid CSS.
	 *
	 * @since 6.0.0
	 * @since 6.2.0 Removed local() CSS.
	 *
	 * @param string $font_family Font family.
	 * @param array  $value       Value to process.
	 * @return string The CSS.
	 */
	$fn_compile_src = static function( $font_family, array $value ) {
		$src = &#039;&#039;;

		foreach ( $value as $item ) {
			$src .= ( &#039;data&#039; === $item[&#039;format&#039;] )
					? &quot;, url({$item[&#039;url&#039;]})&quot;
					: &quot;, url(&#039;{$item[&#039;url&#039;]}&#039;) format(&#039;{$item[&#039;format&#039;]}&#039;)&quot;;
		}

		$src = ltrim( $src, &#039;, &#039; );

		return $src;
	};

	/**
	 * Compiles the font variation settings.
	 *
	 * @since 6.0.0
	 *
	 * @param array $font_variation_settings Array of font variation settings.
	 * @return string The CSS.
	 */
	$fn_compile_variations = static function( array $font_variation_settings ) {
		$variations = &#039;&#039;;

		foreach ( $font_variation_settings as $key =&gt; $value ) {
			$variations .= &quot;$key $value&quot;;
		}

		return $variations;
	};

	/**
	 * Builds the font-family&#039;s CSS.
	 *
	 * @since 6.0.0
	 *
	 * @uses $fn_compile_src To run the function that compiles the src.
	 * @uses $fn_compile_variations To run the function that compiles the variations.
	 *
	 * @param array $webfont Webfont to process.
	 * @return string This font-family&#039;s CSS.
	 */
	$fn_build_font_face_css = static function( array $webfont ) use ( $fn_compile_src, $fn_compile_variations ) {
		$css = &#039;&#039;;

		// Wrap font-family in quotes if it contains spaces.
		if (
				str_contains( $webfont[&#039;font-family&#039;], &#039; &#039; ) &amp;&amp;
				! str_contains( $webfont[&#039;font-family&#039;], &#039;&quot;&#039; ) &amp;&amp;
				! str_contains( $webfont[&#039;font-family&#039;], &quot;&#039;&quot; )
		) {
			$webfont[&#039;font-family&#039;] = &#039;&quot;&#039; . $webfont[&#039;font-family&#039;] . &#039;&quot;&#039;;
		}

		foreach ( $webfont as $key =&gt; $value ) {
			/*
			 * Skip &quot;provider&quot;, since it&#039;s for internal API use,
			 * and not a valid CSS property.
			 */
			if ( &#039;provider&#039; === $key ) {
				continue;
			}

			// Compile the &quot;src&quot; parameter.
			if ( &#039;src&#039; === $key ) {
				$value = $fn_compile_src( $webfont[&#039;font-family&#039;], $value );
			}

			// If font-variation-settings is an array, convert it to a string.
			if ( &#039;font-variation-settings&#039; === $key &amp;&amp; is_array( $value ) ) {
				$value = $fn_compile_variations( $value );
			}

			if ( ! empty( $value ) ) {
				$css .= &quot;$key:$value;&quot;;
			}
		}

		return $css;
	};

	/**
	 * Gets the &#039;@font-face&#039; CSS styles for locally-hosted font files.
	 *
	 * @since 6.0.0
	 *
	 * @uses $registered_webfonts To access and update the registered webfonts registry (passed by reference).
	 * @uses $fn_order_src To run the function that orders the src.
	 * @uses $fn_build_font_face_css To run the function that builds the font-face CSS.
	 *
	 * @return string The `@font-face` CSS.
	 */
	$fn_get_css = static function() use ( &amp;$registered_webfonts, $fn_order_src, $fn_build_font_face_css ) {
		$css = &#039;&#039;;

		foreach ( $registered_webfonts as $webfont ) {
			// Order the webfont&#039;s `src` items to optimize for browser support.
			$webfont = $fn_order_src( $webfont );

			// Build the @font-face CSS for this webfont.
			$css .= &#039;@font-face{&#039; . $fn_build_font_face_css( $webfont ) . &#039;}&#039;;
		}

		return $css;
	};

	/**
	 * Generates and enqueues webfonts styles.
	 *
	 * @since 6.0.0
	 *
	 * @uses $fn_get_css To run the function that gets the CSS.
	 */
	$fn_generate_and_enqueue_styles = static function() use ( $fn_get_css ) {
		// Generate the styles.
		$styles = $fn_get_css();

		// Bail out if there are no styles to enqueue.
		if ( &#039;&#039; === $styles ) {
			return;
		}

		// Enqueue the stylesheet.
		wp_register_style( &#039;wp-webfonts&#039;, &#039;&#039; );
		wp_enqueue_style( &#039;wp-webfonts&#039; );

		// Add the styles to the stylesheet.
		wp_add_inline_style( &#039;wp-webfonts&#039;, $styles );
	};

	/**
	 * Generates and enqueues editor styles.
	 *
	 * @since 6.0.0
	 *
	 * @uses $fn_get_css To run the function that gets the CSS.
	 */
	$fn_generate_and_enqueue_editor_styles = static function() use ( $fn_get_css ) {
		// Generate the styles.
		$styles = $fn_get_css();

		// Bail out if there are no styles to enqueue.
		if ( &#039;&#039; === $styles ) {
			return;
		}

		wp_add_inline_style( &#039;wp-block-library&#039;, $styles );
	};

	add_action( &#039;wp_loaded&#039;, $fn_register_webfonts );
	add_action( &#039;wp_enqueue_scripts&#039;, $fn_generate_and_enqueue_styles );
	add_action( &#039;admin_init&#039;, $fn_generate_and_enqueue_editor_styles );
}

/**
 * Prints the CSS in the embed iframe header.
 *
 * @since 4.4.0
 * @deprecated 6.4.0 Use wp_enqueue_embed_styles() instead.
 */
function print_embed_styles() {
	_deprecated_function( __FUNCTION__, &#039;6.4.0&#039;, &#039;wp_enqueue_embed_styles&#039; );

	$type_attr = current_theme_supports( &#039;html5&#039;, &#039;style&#039; ) ? &#039;&#039; : &#039; type=&quot;text/css&quot;&#039;;
	$suffix    = SCRIPT_DEBUG ? &#039;&#039; : &#039;.min&#039;;
	?&gt;
	&lt;style&lt;?php echo $type_attr; ?&gt;&gt;
		&lt;?php echo file_get_contents( ABSPATH . WPINC . &quot;/css/wp-embed-template$suffix.css&quot; ); ?&gt;
	&lt;/style&gt;
	&lt;?php
}

/**
 * Prints the important emoji-related styles.
 *
 * @since 4.2.0
 * @deprecated 6.4.0 Use wp_enqueue_emoji_styles() instead.
 */
function print_emoji_styles() {
	_deprecated_function( __FUNCTION__, &#039;6.4.0&#039;, &#039;wp_enqueue_emoji_styles&#039; );
	static $printed = false;

	if ( $printed ) {
		return;
	}

	$printed = true;

	$type_attr = current_theme_supports( &#039;html5&#039;, &#039;style&#039; ) ? &#039;&#039; : &#039; type=&quot;text/css&quot;&#039;;
	?&gt;
	&lt;style&lt;?php echo $type_attr; ?&gt;&gt;
	img.wp-smiley,
	img.emoji {
		display: inline !important;
		border: none !important;
		box-shadow: none !important;
		height: 1em !important;
		width: 1em !important;
		margin: 0 0.07em !important;
		vertical-align: -0.1em !important;
		background: none !important;
		padding: 0 !important;
	}
	&lt;/style&gt;
	&lt;?php
}

/**
 * Prints style and scripts for the admin bar.
 *
 * @since 3.1.0
 * @deprecated 6.4.0 Use wp_enqueue_admin_bar_header_styles() instead.
 */
function wp_admin_bar_header() {
	_deprecated_function( __FUNCTION__, &#039;6.4.0&#039;, &#039;wp_enqueue_admin_bar_header_styles&#039; );
	$type_attr = current_theme_supports( &#039;html5&#039;, &#039;style&#039; ) ? &#039;&#039; : &#039; type=&quot;text/css&quot;&#039;;
	?&gt;
	&lt;style&lt;?php echo $type_attr; ?&gt; media=&quot;print&quot;&gt;#wpadminbar { display:none; }&lt;/style&gt;
	&lt;?php
}

/**
 * Prints default admin bar callback.
 *
 * @since 3.1.0
 * @deprecated 6.4.0 Use wp_enqueue_admin_bar_bump_styles() instead.
 */
function _admin_bar_bump_cb() {
	_deprecated_function( __FUNCTION__, &#039;6.4.0&#039;, &#039;wp_enqueue_admin_bar_bump_styles&#039; );
	$type_attr = current_theme_supports( &#039;html5&#039;, &#039;style&#039; ) ? &#039;&#039; : &#039; type=&quot;text/css&quot;&#039;;
	?&gt;
	&lt;style&lt;?php echo $type_attr; ?&gt; media=&quot;screen&quot;&gt;
	html { margin-top: 32px !important; }
	@media screen and ( max-width: 782px ) {
	  html { margin-top: 46px !important; }
	}
	&lt;/style&gt;
	&lt;?php
}

/**
 * Runs a remote HTTPS request to detect whether HTTPS supported, and stores potential errors.
 *
 * This internal function is called by a regular Cron hook to ensure HTTPS support is detected and maintained.
 *
 * @since 5.7.0
 * @deprecated 6.4.0 The `wp_update_https_detection_errors()` function is no longer used and has been replaced by
 *                   `wp_get_https_detection_errors()`. Previously the function was called by a regular Cron hook to
 *                    update the `https_detection_errors` option, but this is no longer necessary as the errors are
 *                    retrieved directly in Site Health and no longer used outside of Site Health.
 * @access private
 */
function wp_update_https_detection_errors() {
	_deprecated_function( __FUNCTION__, &#039;6.4.0&#039; );

	/**
	 * Short-circuits the process of detecting errors related to HTTPS support.
	 *
	 * Returning a `WP_Error` from the filter will effectively short-circuit the default logic of trying a remote
	 * request to the site over HTTPS, storing the errors array from the returned `WP_Error` instead.
	 *
	 * @since 5.7.0
	 * @deprecated 6.4.0 The `wp_update_https_detection_errors` filter is no longer used and has been replaced by `pre_wp_get_https_detection_errors`.
	 *
	 * @param null|WP_Error $pre Error object to short-circuit detection,
	 *                           or null to continue with the default behavior.
	 */
	$support_errors = apply_filters( &#039;pre_wp_update_https_detection_errors&#039;, null );
	if ( is_wp_error( $support_errors ) ) {
		update_option( &#039;https_detection_errors&#039;, $support_errors-&gt;errors, false );
		return;
	}

	$support_errors = wp_get_https_detection_errors();

	update_option( &#039;https_detection_errors&#039;, $support_errors );
}

/**
 * Adds `decoding` attribute to an `img` HTML tag.
 *
 * The `decoding` attribute allows developers to indicate whether the
 * browser can decode the image off the main thread (`async`), on the
 * main thread (`sync`) or as determined by the browser (`auto`).
 *
 * By default WordPress adds `decoding=&quot;async&quot;` to images but developers
 * can use the {@see &#039;wp_img_tag_add_decoding_attr&#039;} filter to modify this
 * to remove the attribute or set it to another accepted value.
 *
 * @since 6.1.0
 * @deprecated 6.4.0 Use wp_img_tag_add_loading_optimization_attrs() instead.
 * @see wp_img_tag_add_loading_optimization_attrs()
 *
 * @param string $image   The HTML `img` tag where the attribute should be added.
 * @param string $context Additional context to pass to the filters.
 * @return string Converted `img` tag with `decoding` attribute added.
 */
function wp_img_tag_add_decoding_attr( $image, $context ) {
	_deprecated_function( __FUNCTION__, &#039;6.4.0&#039;, &#039;wp_img_tag_add_loading_optimization_attrs()&#039; );

	/*
	 * Only apply the decoding attribute to images that have a src attribute that
	 * starts with a double quote, ensuring escaped JSON is also excluded.
	 */
	if ( ! str_contains( $image, &#039; src=&quot;&#039; ) ) {
		return $image;
	}

	/** This action is documented in wp-includes/media.php */
	$value = apply_filters( &#039;wp_img_tag_add_decoding_attr&#039;, &#039;async&#039;, $image, $context );

	if ( in_array( $value, array( &#039;async&#039;, &#039;sync&#039;, &#039;auto&#039; ), true ) ) {
		$image = str_replace( &#039;&lt;img &#039;, &#039;&lt;img decoding=&quot;&#039; . esc_attr( $value ) . &#039;&quot; &#039;, $image );
	}

	return $image;
}

/**
 * Parses wp_template content and injects the active theme&#039;s
 * stylesheet as a theme attribute into each wp_template_part
 *
 * @since 5.9.0
 * @deprecated 6.4.0 Use traverse_and_serialize_blocks( parse_blocks( $template_content ), &#039;_inject_theme_attribute_in_template_part_block&#039; ) instead.
 * @access private
 *
 * @param string $template_content serialized wp_template content.
 * @return string Updated &#039;wp_template&#039; content.
 */
function _inject_theme_attribute_in_block_template_content( $template_content ) {
	_deprecated_function(
		__FUNCTION__,
		&#039;6.4.0&#039;,
		&#039;traverse_and_serialize_blocks( parse_blocks( $template_content ), &quot;_inject_theme_attribute_in_template_part_block&quot; )&#039;
	);

	$has_updated_content = false;
	$new_content         = &#039;&#039;;
	$template_blocks     = parse_blocks( $template_content );

	$blocks = _flatten_blocks( $template_blocks );
	foreach ( $blocks as &amp;$block ) {
		if (
			&#039;core/template-part&#039; === $block[&#039;blockName&#039;] &amp;&amp;
			! isset( $block[&#039;attrs&#039;][&#039;theme&#039;] )
		) {
			$block[&#039;attrs&#039;][&#039;theme&#039;] = get_stylesheet();
			$has_updated_content     = true;
		}
	}

	if ( $has_updated_content ) {
		foreach ( $template_blocks as &amp;$block ) {
			$new_content .= serialize_block( $block );
		}

		return $new_content;
	}

	return $template_content;
}

/**
 * Parses a block template and removes the theme attribute from each template part.
 *
 * @since 5.9.0
 * @deprecated 6.4.0 Use traverse_and_serialize_blocks( parse_blocks( $template_content ), &#039;_remove_theme_attribute_from_template_part_block&#039; ) instead.
 * @access private
 *
 * @param string $template_content Serialized block template content.
 * @return string Updated block template content.
 */
function _remove_theme_attribute_in_block_template_content( $template_content ) {
	_deprecated_function(
		__FUNCTION__,
		&#039;6.4.0&#039;,
		&#039;traverse_and_serialize_blocks( parse_blocks( $template_content ), &quot;_remove_theme_attribute_from_template_part_block&quot; )&#039;
	);

	$has_updated_content = false;
	$new_content         = &#039;&#039;;
	$template_blocks     = parse_blocks( $template_content );

	$blocks = _flatten_blocks( $template_blocks );
	foreach ( $blocks as $key =&gt; $block ) {
		if ( &#039;core/template-part&#039; === $block[&#039;blockName&#039;] &amp;&amp; isset( $block[&#039;attrs&#039;][&#039;theme&#039;] ) ) {
			unset( $blocks[ $key ][&#039;attrs&#039;][&#039;theme&#039;] );
			$has_updated_content = true;
		}
	}

	if ( ! $has_updated_content ) {
		return $template_content;
	}

	foreach ( $template_blocks as $block ) {
		$new_content .= serialize_block( $block );
	}

	return $new_content;
}

/**
 * Prints the skip-link script &amp; styles.
 *
 * @since 5.8.0
 * @access private
 * @deprecated 6.4.0 Use wp_enqueue_block_template_skip_link() instead.
 *
 * @global string $_wp_current_template_content
 */
function the_block_template_skip_link() {
	_deprecated_function( __FUNCTION__, &#039;6.4.0&#039;, &#039;wp_enqueue_block_template_skip_link()&#039; );

	global $_wp_current_template_content;

	// Early exit if not a block theme.
	if ( ! current_theme_supports( &#039;block-templates&#039; ) ) {
		return;
	}

	// Early exit if not a block template.
	if ( ! $_wp_current_template_content ) {
		return;
	}
	?&gt;

	&lt;?php
	/**
	 * Print the skip-link styles.
	 */
	?&gt;
	&lt;style id=&quot;skip-link-styles&quot;&gt;
		.skip-link.screen-reader-text {
			border: 0;
			clip-path: inset(50%);
			height: 1px;
			margin: -1px;
			overflow: hidden;
			padding: 0;
			position: absolute !important;
			width: 1px;
			word-wrap: normal !important;
		}

		.skip-link.screen-reader-text:focus {
			background-color: #eee;
			clip-path: none;
			color: #444;
			display: block;
			font-size: 1em;
			height: auto;
			left: 5px;
			line-height: normal;
			padding: 15px 23px 14px;
			text-decoration: none;
			top: 5px;
			width: auto;
			z-index: 100000;
		}
	&lt;/style&gt;
	&lt;?php
	/**
	 * Print the skip-link script.
	 */
	?&gt;
	&lt;script&gt;
	( function() {
		var skipLinkTarget = document.querySelector( &#039;main&#039; ),
			sibling,
			skipLinkTargetID,
			skipLink;

		// Early exit if a skip-link target can&#039;t be located.
		if ( ! skipLinkTarget ) {
			return;
		}

		/*
		 * Get the site wrapper.
		 * The skip-link will be injected in the beginning of it.
		 */
		sibling = document.querySelector( &#039;.wp-site-blocks&#039; );

		// Early exit if the root element was not found.
		if ( ! sibling ) {
			return;
		}

		// Get the skip-link target&#039;s ID, and generate one if it doesn&#039;t exist.
		skipLinkTargetID = skipLinkTarget.id;
		if ( ! skipLinkTargetID ) {
			skipLinkTargetID = &#039;wp--skip-link--target&#039;;
			skipLinkTarget.id = skipLinkTargetID;
		}

		// Create the skip link.
		skipLink = document.createElement( &#039;a&#039; );
		skipLink.classList.add( &#039;skip-link&#039;, &#039;screen-reader-text&#039; );
		skipLink.href = &#039;#&#039; + skipLinkTargetID;
		skipLink.innerHTML = &#039;&lt;?php /* translators: Hidden accessibility text. */ esc_html_e( &#039;Skip to content&#039; ); ?&gt;&#039;;

		// Inject the skip link.
		sibling.parentElement.insertBefore( skipLink, sibling );
	}() );
	&lt;/script&gt;
	&lt;?php
}

/**
 * Ensure that the view script has the `wp-interactivity` dependency.
 *
 * @since 6.4.0
 * @deprecated 6.5.0
 */
function block_core_query_ensure_interactivity_dependency() {
	_deprecated_function( __FUNCTION__, &#039;6.5.0&#039;, &#039;wp_register_script_module&#039; );
}

/**
 * Ensure that the view script has the `wp-interactivity` dependency.
 *
 * @since 6.4.0
 * @deprecated 6.5.0
 */
function block_core_file_ensure_interactivity_dependency() {
	_deprecated_function( __FUNCTION__, &#039;6.5.0&#039;, &#039;wp_register_script_module&#039; );
}

/**
 * Ensures that the view script has the `wp-interactivity` dependency.
 *
 * @since 6.4.0
 * @deprecated 6.5.0
 */
function block_core_image_ensure_interactivity_dependency() {
	_deprecated_function( __FUNCTION__, &#039;6.5.0&#039;, &#039;wp_register_script_module&#039; );
}

/**
 * Updates the block content with elements class names.
 *
 * @deprecated 6.6.0 Generation of element class name is handled via `render_block_data` filter.
 *
 * @since 5.8.0
 * @since 6.4.0 Added support for button and heading element styling.
 * @access private
 *
 * @param string $block_content Rendered block content.
 * @param array  $block         Block object.
 * @return string Filtered block content.
 */
function wp_render_elements_support( $block_content, $block ) {
	_deprecated_function( __FUNCTION__, &#039;6.6.0&#039;, &#039;wp_render_elements_class_name&#039; );
	return $block_content;
}

/**
 * Processes the directives on the rendered HTML of the interactive blocks.
 *
 * This processes only one root interactive block at a time because the
 * rendered HTML of that block contains the rendered HTML of all its inner
 * blocks, including any interactive block. It does so by ignoring all the
 * interactive inner blocks until the root interactive block is processed.
 *
 * @since 6.5.0
 * @deprecated 6.6.0
 *
 * @param array $parsed_block The parsed block.
 * @return array The same parsed block.
 */
function wp_interactivity_process_directives_of_interactive_blocks( array $parsed_block ): array {
	_deprecated_function( __FUNCTION__, &#039;6.6.0&#039; );
	return $parsed_block;
}

/**
 * Gets the global styles custom CSS from theme.json.
 *
 * @since 6.2.0
 * @deprecated 6.7.0 Use {@see &#039;wp_get_global_stylesheet&#039;} instead for top-level custom CSS, or {@see &#039;WP_Theme_JSON::get_styles_for_block&#039;} for block-level custom CSS.
 *
 * @return string The global styles custom CSS.
 */
function wp_get_global_styles_custom_css() {
	_deprecated_function( __FUNCTION__, &#039;6.7.0&#039;, &#039;wp_get_global_stylesheet&#039; );
	if ( ! wp_theme_has_theme_json() ) {
		return &#039;&#039;;
	}
	/*
	 * Ignore cache when the development mode is set to &#039;theme&#039;, so it doesn&#039;t interfere with the theme
	 * developer&#039;s workflow.
	 */
	$can_use_cached = ! wp_is_development_mode( &#039;theme&#039; );

	/*
	 * By using the &#039;theme_json&#039; group, this data is marked to be non-persistent across requests.
	 * @see `wp_cache_add_non_persistent_groups()`.
	 *
	 * The rationale for this is to make sure derived data from theme.json
	 * is always fresh from the potential modifications done via hooks
	 * that can use dynamic data (modify the stylesheet depending on some option,
	 * settings depending on user permissions, etc.).
	 * See some of the existing hooks to modify theme.json behavior:
	 * @see https://make.wordpress.org/core/2022/10/10/filters-for-theme-json-data/
	 *
	 * A different alternative considered was to invalidate the cache upon certain
	 * events such as options add/update/delete, user meta, etc.
	 * It was judged not enough, hence this approach.
	 * @see https://github.com/WordPress/gutenberg/pull/45372
	 */
	$cache_key   = &#039;wp_get_global_styles_custom_css&#039;;
	$cache_group = &#039;theme_json&#039;;
	if ( $can_use_cached ) {
		$cached = wp_cache_get( $cache_key, $cache_group );
		if ( $cached ) {
			return $cached;
		}
	}

	$tree       = WP_Theme_JSON_Resolver::get_merged_data();
	$stylesheet = $tree-&gt;get_custom_css();

	if ( $can_use_cached ) {
		wp_cache_set( $cache_key, $stylesheet, $cache_group );
	}

	return $stylesheet;
}

/**
 * Enqueues the global styles custom css defined via theme.json.
 *
 * @since 6.2.0
 * @deprecated 6.7.0 Use {@see &#039;wp_enqueue_global_styles&#039;} instead.
 */
function wp_enqueue_global_styles_custom_css() {
	_deprecated_function( __FUNCTION__, &#039;6.7.0&#039;, &#039;wp_enqueue_global_styles&#039; );
	if ( ! wp_is_block_theme() ) {
		return;
	}

	// Don&#039;t enqueue Customizer&#039;s custom CSS separately.
	remove_action( &#039;wp_head&#039;, &#039;wp_custom_css_cb&#039;, 101 );

	$custom_css  = wp_get_custom_css();
	$custom_css .= wp_get_global_styles_custom_css();

	if ( ! empty( $custom_css ) ) {
		wp_add_inline_style( &#039;global-styles&#039;, $custom_css );
	}
}

/**
 * Generate block style variation instance name.
 *
 * @since 6.6.0
 * @deprecated 6.7.0 Use `wp_unique_id( $variation . &#039;--&#039; )` instead.
 *
 * @access private
 *
 * @param array  $block     Block object.
 * @param string $variation Slug for the block style variation.
 *
 * @return string The unique variation name.
 */
function wp_create_block_style_variation_instance_name( $block, $variation ) {
	_deprecated_function( __FUNCTION__, &#039;6.7.0&#039;, &#039;wp_unique_id&#039; );
	return $variation . &#039;--&#039; . md5( serialize( $block ) );
}

/**
 * Returns whether the current user has the specified capability for a given site.
 *
 * @since 3.0.0
 * @since 5.3.0 Formalized the existing and already documented `...$args` parameter
 *              by adding it to the function signature.
 * @since 5.8.0 Wraps current_user_can() after switching to blog.
 * @deprecated 6.7.0 Use current_user_can_for_site() instead.
 *
 * @param int    $blog_id    Site ID.
 * @param string $capability Capability name.
 * @param mixed  ...$args    Optional further parameters, typically starting with an object ID.
 * @return bool Whether the user has the given capability.
 */
function current_user_can_for_blog( $blog_id, $capability, ...$args ) {
	return current_user_can_for_site( $blog_id, $capability, ...$args );
}

/**
 * Loads classic theme styles on classic themes in the editor.
 *
 * This is used for backwards compatibility for Button and File blocks specifically.
 *
 * @since 6.1.0
 * @since 6.2.0 Added File block styles.
 * @deprecated 6.8.0 Styles are enqueued, not printed in the body element.
 *
 * @param array $editor_settings The array of editor settings.
 * @return array A filtered array of editor settings.
 */
function wp_add_editor_classic_theme_styles( $editor_settings ) {
	_deprecated_function( __FUNCTION__, &#039;6.8.0&#039;, &#039;wp_enqueue_classic_theme_styles&#039; );

	if ( wp_theme_has_theme_json() ) {
		return $editor_settings;
	}

	$suffix               = wp_scripts_get_suffix();
	$classic_theme_styles = ABSPATH . WPINC . &quot;/css/classic-themes$suffix.css&quot;;

	/*
	 * This follows the pattern of get_block_editor_theme_styles,
	 * but we can&#039;t use get_block_editor_theme_styles directly as it
	 * only handles external files or theme files.
	 */
	$classic_theme_styles_settings = array(
		&#039;css&#039;            =&gt; file_get_contents( $classic_theme_styles ),
		&#039;__unstableType&#039; =&gt; &#039;core&#039;,
		&#039;isGlobalStyles&#039; =&gt; false,
	);

	// Add these settings to the start of the array so that themes can override them.
	array_unshift( $editor_settings[&#039;styles&#039;], $classic_theme_styles_settings );

	return $editor_settings;
}

/**
 * Prints a CSS rule to fix potential visual issues with images using `sizes=auto`.
 *
 * This rule overrides the similar rule in the default user agent stylesheet, to avoid images that use e.g.
 * `width: auto` or `width: fit-content` to appear smaller.
 *
 * @since 6.7.1
 * @deprecated 6.9.0 Use wp_enqueue_img_auto_sizes_contain_css_fix() instead.
 * @see wp_enqueue_img_auto_sizes_contain_css_fix()
 *
 * @see https://html.spec.whatwg.org/multipage/rendering.html#img-contain-size
 * @see https://core.trac.wordpress.org/ticket/62413
 * @see https://core.trac.wordpress.org/ticket/62731
 */
function wp_print_auto_sizes_contain_css_fix() {
	_deprecated_function( __FUNCTION__, &#039;6.9.0&#039;, &#039;wp_enqueue_img_auto_sizes_contain_css_fix&#039; );

	/** This filter is documented in wp-includes/media.php */
	$add_auto_sizes = apply_filters( &#039;wp_img_tag_add_auto_sizes&#039;, true );
	if ( ! $add_auto_sizes ) {
		return;
	}

	?&gt;
	&lt;style&gt;img:is([sizes=&quot;auto&quot; i], [sizes^=&quot;auto,&quot; i]) { contain-intrinsic-size: 3000px 1500px }&lt;/style&gt;
	&lt;?php
}
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