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<?php
/**
 * Deprecated functions from past WordPress versions. You shouldn'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__, '1.5.1', 'get_post()' );

   
$post = get_post($postid);

   
$postdata = array (
       
'ID' => $post->ID,
       
'Author_ID' => $post->post_author,
       
'Date' => $post->post_date,
       
'Content' => $post->post_content,
       
'Excerpt' => $post->post_excerpt,
       
'Title' => $post->post_title,
       
'Category' => $post->post_category,
       
'post_status' => $post->post_status,
       
'comment_status' => $post->comment_status,
       
'ping_status' => $post->ping_status,
       
'post_password' => $post->post_password,
       
'to_ping' => $post->to_ping,
       
'pinged' => $post->pinged,
       
'post_type' => $post->post_type,
       
'post_name' => $post->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
 */
function start_wp() {
    global
$wp_query;

   
_deprecated_function( __FUNCTION__, '1.5.0', __('new WordPress Loop') );

   
// Since the old style loop is being used, advance the query iterator here.
   
$wp_query->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__, '0.71', 'get_the_category()' );

   
// Grab the first cat in the list.
   
$categories = get_the_category();
   
$cat = $categories[0]->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 = '', $after = '' ) {
    global
$currentcat, $previouscat;

   
_deprecated_function( __FUNCTION__, '0.71', 'get_the_category_by_ID()' );

   
// Grab the first cat in the list.
   
$categories = get_the_category();
   
$currentcat = $categories[0]->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='%', $previous='previous post: ', $title='yes', $in_same_cat='no', $limitprev=1, $excluded_categories='') {

   
_deprecated_function( __FUNCTION__, '2.0.0', 'previous_post_link()' );

    if ( empty(
$in_same_cat) || 'no' == $in_same_cat )
       
$in_same_cat = false;
    else
       
$in_same_cat = true;

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

    if ( !
$post )
        return;

   
$string = '<a href="'.get_permalink($post->ID).'">'.$previous;
    if (
'yes' == $title )
       
$string .= apply_filters('the_title', $post->post_title, $post->ID);
   
$string .= '</a>';
   
$format = str_replace('%', $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='%', $next='next post: ', $title='yes', $in_same_cat='no', $limitnext=1, $excluded_categories='') {
   
_deprecated_function( __FUNCTION__, '2.0.0', 'next_post_link()' );

    if ( empty(
$in_same_cat) || 'no' == $in_same_cat )
       
$in_same_cat = false;
    else
       
$in_same_cat = true;

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

    if ( !
$post    )
        return;

   
$string = '<a href="'.get_permalink($post->ID).'">'.$next;
    if (
'yes' == $title )
       
$string .= apply_filters('the_title', $post->post_title, $post->ID);
   
$string .= '</a>';
   
$format = str_replace('%', $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 = 'None') {
   
_deprecated_function( __FUNCTION__, '2.0.0', 'current_user_can()' );

   
$author_data = get_userdata($user_id);
    return (
$author_data->user_level > 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 = 'None') {
   
_deprecated_function( __FUNCTION__, '2.0.0', 'current_user_can()' );

   
$author_data = get_userdata($user_id);
    return (
$author_data->user_level >= 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__, '2.0.0', 'current_user_can()' );

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

    if ( ((
$user_id == $post_author_data->ID) && !($post->post_status == 'publish' && $author_data->user_level < 2))
            || (
$author_data->user_level > $post_author_data->user_level)
            || (
$author_data->user_level >= 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__, '2.0.0', 'current_user_can()' );

   
// 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' 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 = 'None') {
   
_deprecated_function( __FUNCTION__, '2.0.0', 'current_user_can()' );

   
$author_data = get_userdata($user_id);
    return ((
$author_data->user_level > 4) && user_can_create_post($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 $post_id's date
 */
function user_can_edit_post_date($user_id, $post_id, $blog_id = 1) {
   
_deprecated_function( __FUNCTION__, '2.0.0', 'current_user_can()' );

   
$author_data = get_userdata($user_id);
    return ((
$author_data->user_level > 4) && user_can_edit_post($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 $post_id's comments
 */
function user_can_edit_post_comments($user_id, $post_id, $blog_id = 1) {
   
_deprecated_function( __FUNCTION__, '2.0.0', 'current_user_can()' );

   
// 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 $post_id's comments
 */
function user_can_delete_post_comments($user_id, $post_id, $blog_id = 1) {
   
_deprecated_function( __FUNCTION__, '2.0.0', 'current_user_can()' );

   
// 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__, '2.0.0', 'current_user_can()' );

   
$user  = get_userdata($user_id);
   
$other = get_userdata($other_user);
    if (
$user->user_level > $other->user_level || $user->user_level > 8 || $user->ID == $other->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 'noname'.
 * @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 '<br />'.
 * @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 ' '.
 * @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. 'id', 'name', 'url',
 *                                 'description', 'rating', or 'owner'. Default 'id'.
 *                                 If you start the name with an underscore, the order will be reversed.
 *                                 Specifying 'rand' 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 = "noname", $before = '', $after = '<br />', $between = " ", $show_images = true, $orderby = 'id',
                       
$show_description = true, $show_rating = false,
                       
$limit = -1, $show_updated = 0) {
   
_deprecated_function( __FUNCTION__, '2.1.0', 'get_bookmarks()' );

   
$cat_id = -1;
   
$cat = get_term_by('name', $cat_name, 'link_category');
    if (
$cat )
       
$cat_id = $cat->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 = '') {
   
_deprecated_function(__FUNCTION__, '2.1.0', 'wp_list_bookmarks()');

   
$defaults = array(
       
'after' => '<br />',
       
'before' => '',
       
'categorize' => 0,
       
'category_after' => '',
       
'category_before' => '',
       
'category_name' => $category,
       
'show_description' => 1,
       
'title_li' => '',
    );

   
$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( 'fred' );
 *     foreach ( $links as $link ) {
 *          echo '<li>' . $link->link_name . '</li>';
 *     }
 *
 * @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 'noname'.
 * @param string $orderby  Optional. The order to output the links. E.g. 'id', 'name', 'url',
 *                         'description', 'rating', or 'owner'. Default 'name'.
 *                         If you start the name with an underscore, the order will be reversed.
 *                         Specifying 'rand' 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 = "noname" , $orderby = 'name', $limit = -1) {
   
_deprecated_function( __FUNCTION__, '2.1.0', 'get_bookmarks()' );

   
$cat_id = -1;
   
$cat = get_term_by('name', $cat_name, 'link_category');
    if (
$cat )
       
$cat_id = $cat->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 $link) {
 *             echo '<li>'.$link->link_name.'<br />'.$link->link_description.'</li>';
 *         }
 *     }
 *
 * 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. 'id', 'name', 'url',
 *                         'description', 'rating', or 'owner'. Default 'name'.
 *                         If you start the name with an underscore, the order will be reversed.
 *                         Specifying 'rand' 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 = 'name', $limit = 0) {
   
_deprecated_function( __FUNCTION__, '2.1.0', 'get_bookmarks()' );

   
$links = get_bookmarks( array( 'category' => $category, 'orderby' => $orderby, 'limit' => $limit ) ) ;

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

    return
$links_array;
}

/**
 * Gets the links associated with category 'cat_name' 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 'noname'.
 * @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 '<br />'.
 * @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 ' '.
 * @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. 'id', 'name', 'url',
 *                                 'description', 'rating', or 'owner'. Default 'id'.
 *                                 If you start the name with an underscore, the order will be reversed.
 *                                 Specifying 'rand' 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 = "noname", $before = '', $after = '<br />', $between = " ",
                                   
$show_images = true, $orderby = 'id', $show_description = true, $limit = -1, $show_updated = 0) {
   
_deprecated_function( __FUNCTION__, '2.1.0', 'get_bookmarks()' );

   
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 '<br />'.
 * @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 ' '.
 * @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. 'id', 'name', 'url',
 *                                 'description', 'rating', or 'owner'. Default 'id'.
 *                                 If you start the name with an underscore, the order will be reversed.
 *                                 Specifying 'rand' 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 = '', $after = '<br />', $between = " ", $show_images = true,
                           
$orderby = 'id', $show_description = true, $limit = -1, $show_updated = 0) {
   
_deprecated_function( __FUNCTION__, '2.1.0', 'get_bookmarks()' );

   
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__, '2.1.0' );
    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 = 'All', $sort_column = 'ID', $sort_order = 'asc', $file = '', $list = true, $optiondates = 0,
               
$optioncount = 0, $hide_empty = 1, $use_desc_for_title = 1, $children=false, $child_of=0, $categories=0,
               
$recurse=0, $feed = '', $feed_image = '', $exclude = '', $hierarchical=false) {
   
_deprecated_function( __FUNCTION__, '2.1.0', 'wp_list_categories()' );

   
$query = compact('optionall', 'all', 'sort_column', 'sort_order', 'file', 'list', 'optiondates', 'optioncount', 'hide_empty', 'use_desc_for_title', 'children',
       
'child_of', 'categories', 'recurse', 'feed', 'feed_image', 'exclude', 'hierarchical');
    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 = '') {
   
_deprecated_function( __FUNCTION__, '2.1.0', 'wp_list_categories()' );

   
$parsed_args = wp_parse_args( $args );

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

    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 = 'All', $orderby = 'ID', $order = 'asc',
       
$show_last_update = 0, $show_count = 0, $hide_empty = 1, $optionnone = false,
       
$selected = 0, $exclude = 0) {
   
_deprecated_function( __FUNCTION__, '2.1.0', 'wp_dropdown_categories()' );

   
$show_option_all = '';
    if (
$optionall )
       
$show_option_all = $all;

   
$show_option_none = '';
    if (
$optionnone )
       
$show_option_none = __('None');

   
$vars = compact('show_option_all', 'show_option_none', 'orderby', 'order',
                   
'show_last_update', 'show_count', 'hide_empty', 'selected', 'exclude');
   
$query = add_query_arg($vars, '');
    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 = '', $feed_image = '') {
   
_deprecated_function( __FUNCTION__, '2.1.0', 'wp_list_authors()' );

   
$args = compact('optioncount', 'exclude_admin', 'show_fullname', 'hide_empty', 'feed', 'feed_image');
    return
wp_list_authors($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 = '1', $post_ID = 0) {
   
_deprecated_function( __FUNCTION__, '2.1.0', 'wp_get_post_categories()' );
    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 = '1', $post_ID = 0, $post_categories = array()) {
   
_deprecated_function( __FUNCTION__, '2.1.0', 'wp_set_post_categories()' );
    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='', $limit='', $format='html', $before = '', $after = '', $show_post_count = false) {
   
_deprecated_function( __FUNCTION__, '2.1.0', 'wp_get_archives()' );
   
$args = compact('type', 'limit', 'format', 'before', 'after', 'show_post_count');
    return
wp_get_archives($args);
}

/**
 * Returns or Prints link to the author'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 = '') {
   
_deprecated_function( __FUNCTION__, '2.1.0', 'get_author_posts_url()' );

   
$link = get_author_posts_url($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='<br />', $after='<br />', $next_or_number='number', $nextpagelink='next page', $previouspagelink='previous page',
                   
$pagelink='%', $more_file='') {
   
_deprecated_function( __FUNCTION__, '2.1.0', 'wp_link_pages()' );

   
$args = compact('before', 'after', 'next_or_number', 'nextpagelink', 'previouspagelink', 'pagelink', 'more_file');
    return
wp_link_pages($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__, '2.1.0', 'get_option()' );

    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__, '1.2.0', 'the_permalink()' );
   
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 = '') {
   
_deprecated_function( __FUNCTION__, '2.3.0', 'the_permalink_rss()' );
   
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 = '') {
   
_deprecated_function( __FUNCTION__, '2.1.0', 'wp_list_bookmarks()' );

    if (
strpos( $args, '=' ) === false ) {
       
$cat_id = $args;
       
$args = add_query_arg( 'category', $cat_id, $args );
    }

   
$defaults = array(
       
'after' => '<br />',
       
'before' => '',
       
'between' => ' ',
       
'categorize' => 0,
       
'category' => '',
       
'echo' => true,
       
'limit' => -1,
       
'orderby' => 'name',
       
'show_description' => true,
       
'show_images' => true,
       
'show_rating' => false,
       
'show_updated' => true,
       
'title_li' => '',
    );

   
$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 '<br />'.
 * @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 ' '.
 * @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. 'id', 'name', 'url',
 *                                 'description', 'rating', or 'owner'. Default 'name'.
 *                                 If you start the name with an underscore, the order will be reversed.
 *                                 Specifying 'rand' 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 = '', $after = '<br />', $between = ' ', $show_images = true, $orderby = 'name',
           
$show_description = true, $show_rating = false, $limit = -1, $show_updated = 1, $display = true) {
   
_deprecated_function( __FUNCTION__, '2.1.0', 'get_bookmarks()' );

   
$order = 'ASC';
    if (
substr($orderby, 0, 1) == '_' ) {
       
$order = 'DESC';
       
$orderby = substr($orderby, 1);
    }

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

   
$results = get_bookmarks(array('category' => $category, 'orderby' => $orderby, 'order' => $order, 'show_updated' => $show_updated, 'limit' => $limit));

    if ( !
$results )
        return;

   
$output = '';

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

       
$desc = esc_attr(sanitize_bookmark_field('link_description', $row->link_description, $row->link_id, 'display'));
       
$name = esc_attr(sanitize_bookmark_field('link_name', $row->link_name, $row->link_id, 'display'));
       
$title = $desc;

        if (
$show_updated )
            if (
substr($row->link_updated_f, 0, 2) != '00')
               
$title .= ' ('.__('Last updated') . ' ' . gmdate(get_option('links_updated_date_format'), $row->link_updated_f + (get_option('gmt_offset') * HOUR_IN_SECONDS)) . ')';

        if (
'' != $title )
           
$title = ' title="' . $title . '"';

       
$alt = ' alt="' . $name . '"';

       
$target = $row->link_target;
        if (
'' != $target )
           
$target = ' target="' . $target . '"';

       
$output .= '<a href="' . $the_link . '"' . $rel . $title . $target. '>';

        if (
$row->link_image != null && $show_images ) {
            if (
strpos($row->link_image, 'http') !== false )
               
$output .= "<img src=\"$row->link_image\" $alt $title />";
            else
// If it's a relative path.
               
$output .= "<img src=\"" . get_option('siteurl') . "$row->link_image\" $alt $title />";
        } else {
           
$output .= $name;
        }

       
$output .= '</a>';

        if (
$show_updated && $row->recently_updated )
           
$output .= get_option('links_recently_updated_append');

        if (
$show_description && '' != $desc )
           
$output .= $between . $desc;

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

       
$output .= "$after\n";
    }
// 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->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 $order Sort link categories by 'name' or 'id'
 */
function get_links_list($order = 'name') {
   
_deprecated_function( __FUNCTION__, '2.1.0', 'wp_list_bookmarks()' );

   
$order = strtolower($order);

   
// Handle link category sorting.
   
$direction = 'ASC';
    if (
'_' == substr($order,0,1) ) {
       
$direction = 'DESC';
       
$order = substr($order,1);
    }

    if ( !isset(
$direction) )
       
$direction = '';

   
$cats = get_categories(array('type' => 'link', 'orderby' => $order, 'order' => $direction, 'hierarchical' => 0));

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

            // Display the category name.
           
echo '  <li id="linkcat-' . $cat->term_id . '" class="linkcat"><h2>' . apply_filters('link_category', $cat->name ) . "</h2>\n\t<ul>\n";
           
// Call get_links() with all the appropriate params.
           
get_links($cat->term_id, '<li>', "</li>", "\n", true, 'name', false);

           
// Close the last category.
           
echo "\n\t</ul>\n</li>\n";
        }
    }
}

/**
 * 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 = 'Links', $width=400, $height=400, $file='links.all.php', $count = true) {
   
_deprecated_function( __FUNCTION__, '2.1.0' );
}

/**
 * Legacy function that retrieved the value of a link'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 'link_rating' field, false otherwise.
 */
function get_linkrating( $link ) {
   
_deprecated_function( __FUNCTION__, '2.1.0', 'sanitize_bookmark_field()' );
    return
sanitize_bookmark_field('link_rating', $link->link_rating, $link->link_id, 'display');
}

/**
 * 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__, '2.1.0', 'get_category()' );

   
$id = (int) $id;

    if ( empty(
$id) )
        return
'';

   
$cats = wp_get_link_cats($id);

    if ( empty(
$cats) || ! is_array($cats) )
        return
'';

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

   
$cat = get_category($cat_id);
    return
$cat->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 = 'Comments RSS') {
   
_deprecated_function( __FUNCTION__, '2.5.0', 'post_comments_feed_link()' );
   
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__, '2.5.0', 'get_category_feed_link()' );

   
$link = get_category_feed_link($cat_ID, 'rss2');

    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__, '2.5.0', 'get_author_feed_link()' );

   
$link = get_author_feed_link($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__, '2.2.0', 'get_post_comments_feed_link()' );
    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's username.
 * @param string $password The user's password.
 * @param string $email    The user's email.
 * @return int The new user's ID.
 */
function create_user($username, $password, $email) {
   
_deprecated_function( __FUNCTION__, '2.0.0', 'wp_create_user()' );
    return
wp_create_user($username, $password, $email);
}

/**
 * Unused function.
 *
 * @deprecated 2.5.0
 */
function gzip_compression() {
   
_deprecated_function( __FUNCTION__, '2.5.0' );
    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__, '2.7.0', 'get_comment()' );
    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__, '2.8.0', 'get_cat_name()' );
    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 '/'.
 * @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 = '/', $after = '', $visited = array() ) {
   
_deprecated_function( __FUNCTION__, '2.8.0', 'get_term_children()' );
    if (
0 == $id )
        return
'';

   
$chain = '';
   
/** 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->parent == $id && !in_array( $category->term_id, $visited ) ) {
           
$visited[] = $category->term_id;
           
$chain .= $before.$category->term_id.$after;
           
$chain .= get_category_children( $category->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__, '4.0.0', 'get_terms()' );

   
$cat_ids = get_terms(
        array(
           
'taxonomy' => 'category',
           
'fields'   => 'ids',
           
'get'      => 'all',
        )
    );

    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's description.
 */
function get_the_author_description() {
   
_deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'description\')' );
    return
get_the_author_meta('description');
}

/**
 * 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__, '2.8.0', 'the_author_meta(\'description\')' );
   
the_author_meta('description');
}

/**
 * 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's login name (username).
 */
function get_the_author_login() {
   
_deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'login\')' );
    return
get_the_author_meta('login');
}

/**
 * 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__, '2.8.0', 'the_author_meta(\'login\')' );
   
the_author_meta('login');
}

/**
 * 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's first name.
 */
function get_the_author_firstname() {
   
_deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'first_name\')' );
    return
get_the_author_meta('first_name');
}

/**
 * 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__, '2.8.0', 'the_author_meta(\'first_name\')' );
   
the_author_meta('first_name');
}

/**
 * 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's last name.
 */
function get_the_author_lastname() {
   
_deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'last_name\')' );
    return
get_the_author_meta('last_name');
}

/**
 * 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__, '2.8.0', 'the_author_meta(\'last_name\')' );
   
the_author_meta('last_name');
}

/**
 * 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's nickname.
 */
function get_the_author_nickname() {
   
_deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'nickname\')' );
    return
get_the_author_meta('nickname');
}

/**
 * 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__, '2.8.0', 'the_author_meta(\'nickname\')' );
   
the_author_meta('nickname');
}

/**
 * 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's username.
 */
function get_the_author_email() {
   
_deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'email\')' );
    return
get_the_author_meta('email');
}

/**
 * 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__, '2.8.0', 'the_author_meta(\'email\')' );
   
the_author_meta('email');
}

/**
 * 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's ICQ number.
 */
function get_the_author_icq() {
   
_deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'icq\')' );
    return
get_the_author_meta('icq');
}

/**
 * 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__, '2.8.0', 'the_author_meta(\'icq\')' );
   
the_author_meta('icq');
}

/**
 * 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's Yahoo! IM name.
 */
function get_the_author_yim() {
   
_deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'yim\')' );
    return
get_the_author_meta('yim');
}

/**
 * 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__, '2.8.0', 'the_author_meta(\'yim\')' );
   
the_author_meta('yim');
}

/**
 * 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's MSN address.
 */
function get_the_author_msn() {
   
_deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'msn\')' );
    return
get_the_author_meta('msn');
}

/**
 * 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__, '2.8.0', 'the_author_meta(\'msn\')' );
   
the_author_meta('msn');
}

/**
 * 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's AIM address.
 */
function get_the_author_aim() {
   
_deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'aim\')' );
    return
get_the_author_meta('aim');
}

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

/**
 * Retrieve the specified author'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's display name.
 */
function get_author_name( $auth_id = false ) {
   
_deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'display_name\')' );
    return
get_the_author_meta('display_name', $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's page.
 */
function get_the_author_url() {
   
_deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'url\')' );
    return
get_the_author_meta('url');
}

/**
 * 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__, '2.8.0', 'the_author_meta(\'url\')' );
   
the_author_meta('url');
}

/**
 * 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's ID.
 */
function get_the_author_ID() {
   
_deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'ID\')' );
    return
get_the_author_meta('ID');
}

/**
 * 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__, '2.8.0', 'the_author_meta(\'ID\')' );
   
the_author_meta('ID');
}

/**
 * Display the post content for the feed.
 *
 * For encoding the HTML or the $encode_html parameter, there are three possible values:
 * - '0' will make urls footnotes and use make_url_footnote().
 * - '1' will encode special characters and automatically display all of the content.
 * - '2' 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'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 '(more...)'.
 * @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='(more...)', $stripteaser=0, $more_file='', $cut = 0, $encode_html = 0) {
   
_deprecated_function( __FUNCTION__, '2.9.0', 'the_content_feed()' );
   
$content = get_the_content($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('the_content_rss', $content);
    if (
$cut && !$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(' ', $content);
        if (
count($blah) > $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; $i<$k; $i++ )
           
$excerpt .= $blah[$i].' ';
       
$excerpt .= ($use_dotdotdot) ? '...' : '';
       
$content = $excerpt;
    }
   
$content = str_replace(']]>', ']]&gt;', $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__, '2.9.0', '' );
   
preg_match_all( '/<a(.+?)href=\"(.+?)\"(.*?)>(.+?)<\/a>/', $content, $matches );
   
$links_summary = "\n";
    for (
$i = 0, $c = count( $matches[0] ); $i < $c; $i++ ) {
       
$link_match = $matches[0][$i];
       
$link_number = '['.($i+1).']';
       
$link_url = $matches[2][$i];
       
$link_text = $matches[4][$i];
       
$content = str_replace( $link_match, $link_text . ' ' . $link_number, $content );
       
$link_url = ( ( strtolower( substr( $link_url, 0, 7 ) ) != 'http://' ) && ( strtolower( substr( $link_url, 0, 8 ) ) != 'https://' ) ) ? get_option( 'home' ) . $link_url : $link_url;
       
$links_summary .= "\n" . $link_number . ' ' . $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 ('|') 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 = 'default' ) {
   
_deprecated_function( __FUNCTION__, '2.9.0', '_x()' );
    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 = 'default' ) {
   
_deprecated_function( __FUNCTION__, '2.9.0', '_x()' );
    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 'default'.
 * @return string The translated singular or plural form.
 */
function _nc( $single, $plural, $number, $domain = 'default' ) {
   
_deprecated_function( __FUNCTION__, '2.9.0', '_nx()' );
    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__, '2.8.0', '_n()' );
    return
_n( ...$args );
}

/**
 * Register plural strings in POT file, but don'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__, '2.8.0', '_n_noop()' );
    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__, '3.0.0', 'wp_load_alloptions()' );
    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__, '2.5.0', 'wp_get_attachment_link()' );
   
$id = (int) $id;
   
$_post = get_post($id);

    if ( (
'attachment' != $_post->post_type) || !$url = wp_get_attachment_url($_post->ID) )
        return
__('Missing Attachment');

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

   
$post_title = esc_attr($_post->post_title);

   
$innerHTML = get_attachment_innerHTML($_post->ID, $fullsize, $max_dims);
    return
"<a href='$url' title='$post_title'>$innerHTML</a>";
}

/**
 * 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__, '2.5.0', 'wp_get_attachment_image_src()' );
   
$id = (int) $id;
    if ( !
$post = get_post($id) )
        return
false;

   
$file = get_attached_file( $post->ID );

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

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

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

        /** This filter is documented in wp-includes/post.php */
       
$icon_dir = apply_filters( 'icon_dir', get_template_directory() . '/images' );
       
$src_file = $icon_dir . '/' . wp_basename($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__, '2.5.0', 'wp_get_attachment_image()' );
   
$id = (int) $id;
    if ( !
$post = get_post($id) )
        return
false;

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

    list(
$src, $src_file) = $src;

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

       
$imagesize = wp_getimagesize($src_file);

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

            if (
$actual_aspect >= $desired_aspect ) {
               
$height = $actual_aspect * $max_dims[0];
               
$constraint = "width='{$max_dims[0]}' ";
               
$post->iconsize = array($max_dims[0], $height);
            } else {
               
$width = $max_dims[1] / $actual_aspect;
               
$constraint = "height='{$max_dims[1]}' ";
               
$post->iconsize = array($width, $max_dims[1]);
            }
        } else {
           
$post->iconsize = array($imagesize[0], $imagesize[1]);
           
$constraint = '';
        }
    } else {
       
$constraint = '';
    }

   
$post_title = esc_attr($post->post_title);

   
$icon = "<img src='$src' title='$post_title' alt='$post_title' $constraint/>";

    return
apply_filters( 'attachment_icon', $icon, $post->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__, '2.5.0', 'wp_get_attachment_image()' );
   
$id = (int) $id;
    if ( !
$post = get_post($id) )
        return
false;

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

   
$innerHTML = esc_attr($post->post_title);

    return
apply_filters('attachment_innerHTML', $innerHTML, $post->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 $filter      Optional. How to filter the link for output. Accepts 'raw', 'edit',
 *                            'attribute', 'js', 'db', or 'display'. Default 'raw'.
 * @return object|array Bookmark object or array, depending on the type specified by `$output`.
 */
function get_link( $bookmark_id, $output = OBJECT, $filter = 'raw' ) {
   
_deprecated_function( __FUNCTION__, '2.1.0', 'get_bookmark()' );
    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 behaviour) ampersands are also replaced. The 'clean_url' 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 'display'.
 * @return string The cleaned $url after the {@see 'clean_url'} filter is applied.
 */
function clean_url( $url, $protocols = null, $context = 'display' ) {
    if (
$context == 'db' )
       
_deprecated_function( 'clean_url( $context = \'db\' )', '3.0.0', 'esc_url_raw()' );
    else
       
_deprecated_function( __FUNCTION__, '3.0.0', 'esc_url()' );
    return
esc_url( $url, $protocols, $context );
}

/**
 * Escape single quotes, specialchar double quotes, and fix line endings.
 *
 * The filter {@see 'js_escape'} 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__, '2.8.0', 'esc_js()' );
    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__, '2.8.0', 'esc_html()' );
    if (
func_num_args() > 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__, '2.8.0', 'esc_attr()' );
    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, $classname = '', ...$params) {
   
_deprecated_function( __FUNCTION__, '2.8.0', 'wp_register_sidebar_widget()' );
   
// 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 ) && is_string( $classname ) ) {
       
$options['classname'] = $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__, '2.8.0', 'wp_unregister_sidebar_widget()' );
    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 = '', $height = '', ...$params) {
   
_deprecated_function( __FUNCTION__, '2.8.0', 'wp_register_widget_control()' );
   
// 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['width'] = $width;
    }
    if ( ! empty(
$height ) ) {
       
$options['height'] = $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__, '2.8.0', 'wp_unregister_widget_control()' );
    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()
 *
 * @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 = '' ) {
   
_deprecated_function( __FUNCTION__, '3.0.0', 'delete_user_meta()' );
    global
$wpdb;
    if ( !
is_numeric( $user_id ) )
        return
false;
   
$meta_key = preg_replace('|[^a-z0-9_]|i', '', $meta_key);

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

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

    if (
$cur && $cur->umeta_id )
       
do_action( 'delete_usermeta', $cur->umeta_id, $user_id, $meta_key, $meta_value );

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

   
clean_user_cache( $user_id );
   
wp_cache_delete( $user_id, 'user_meta' );

    if (
$cur && $cur->umeta_id )
       
do_action( 'deleted_usermeta', $cur->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 'false'
 * 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()
 *
 * @param int $user_id User ID
 * @param string $meta_key Optional. Metadata key. Default empty.
 * @return mixed
 */
function get_usermeta( $user_id, $meta_key = '' ) {
   
_deprecated_function( __FUNCTION__, '3.0.0', 'get_user_meta()' );
    global
$wpdb;
   
$user_id = (int) $user_id;

    if ( !
$user_id )
        return
false;

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

    if ( empty(
$metas) ) {
        if ( empty(
$meta_key) )
            return array();
        else
            return
'';
    }

   
$metas = array_map('maybe_unserialize', $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()
 *
 * @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__, '3.0.0', 'update_user_meta()' );
    global
$wpdb;
    if ( !
is_numeric( $user_id ) )
        return
false;
   
$meta_key = preg_replace('|[^a-z0-9_]|i', '', $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->get_row( $wpdb->prepare("SELECT * FROM $wpdb->usermeta WHERE user_id = %d AND meta_key = %s", $user_id, $meta_key) );

    if (
$cur )
       
do_action( 'update_usermeta', $cur->umeta_id, $user_id, $meta_key, $meta_value );

    if ( !
$cur )
       
$wpdb->insert($wpdb->usermeta, compact('user_id', 'meta_key', 'meta_value') );
    elseif (
$cur->meta_value != $meta_value )
       
$wpdb->update($wpdb->usermeta, compact('meta_value'), compact('user_id', 'meta_key') );
    else
        return
false;

   
clean_user_cache( $user_id );
   
wp_cache_delete( $user_id, 'user_meta' );

    if ( !
$cur )
       
do_action( 'added_usermeta', $wpdb->insert_id, $user_id, $meta_key, $meta_value );
    else
       
do_action( 'updated_usermeta', $cur->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 = '' ) {
   
_deprecated_function( __FUNCTION__, '3.1.0', 'get_users()' );

    global
$wpdb;
    if ( empty(
$id ) ) {
       
$id = get_current_blog_id();
    }
   
$blog_prefix = $wpdb->get_blog_prefix($id);
   
$users = $wpdb->get_results( "SELECT user_id, user_id AS ID, user_login, display_name, user_email, meta_value FROM $wpdb->users, $wpdb->usermeta WHERE {$wpdb->users}.ID = {$wpdb->usermeta}.user_id AND meta_key = '{$blog_prefix}capabilities' ORDER BY {$wpdb->usermeta}.user_id" );
    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__, '3.0.0', "add_theme_support( 'automatic-feed-links' )" );

    if (
$add )
       
add_theme_support( 'automatic-feed-links' );
    else
       
remove_action( 'wp_head', 'feed_links_extra', 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's field from the current author's DB object.
 */
function get_profile( $field, $user = false ) {
   
_deprecated_function( __FUNCTION__, '3.0.0', 'get_the_author_meta()' );
    if (
$user ) {
       
$user = get_user_by( 'login', $user );
       
$user = $user->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__, '3.0.0', 'count_user_posts()' );
    return
count_user_posts( $userid );
}

/**
 * Callback used to change %uXXXX to &#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
"&#".base_convert($matches[1],16,10).";";
}

/**
 * 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__, '3.0.0' );
   
// Fixes for browsers' JavaScript bugs.
   
global $is_macIE, $is_winIE;

    if (
$is_winIE || $is_macIE )
       
$text =  preg_replace_callback("/\%u([0-9A-F]{4,4})/",
                   
"funky_javascript_callback",
                   
$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__, '3.0.0', 'taxonomy_exists()' );
    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 = '', $parent = 0 ) {
   
_deprecated_function( __FUNCTION__, '3.0.0', 'term_exists()' );
    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__, '3.1.0'  );

    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__, '3.1.0'  );

    return
true;
}

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

    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 'content'.
 * @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 = 'content', $prev_id = 'title', $media_buttons = true, $tab_index = 2, $extended = true) {
   
_deprecated_function( __FUNCTION__, '3.3.0', 'wp_editor()' );

   
wp_editor( $content, $id, array( 'media_buttons' => $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__, '3.3.0' );

   
$objects = array();

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

   
$metas = update_meta_cache('user', $ids);

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

    return
$objects;
}

/**
 * Sanitize every user field.
 *
 * If the context is 'raw', then the user object or array will get minimal santization 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 'display'.
 * @return object|array The now sanitized user object or array (will be the same type as $user).
 */
function sanitize_user_object($user, $context = 'display') {
   
_deprecated_function( __FUNCTION__, '3.3.0' );

    if (
is_object($user) ) {
        if ( !isset(
$user->ID) )
           
$user->ID = 0;
        if ( ! (
$user instanceof WP_User ) ) {
           
$vars = get_object_vars($user);
            foreach (
array_keys($vars) as $field ) {
                if (
is_string($user->$field) || is_numeric($user->$field) )
                   
$user->$field = sanitize_user_field($field, $user->$field, $user->ID, $context);
            }
        }
       
$user->filter = $context;
    } else {
        if ( !isset(
$user['ID']) )
           
$user['ID'] = 0;
        foreach (
array_keys($user) as $field )
           
$user[$field] = sanitize_user_field($field, $user[$field], $user['ID'], $context);
       
$user['filter'] = $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 '%title'.
 * @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 = '%title', $in_same_cat = false, $excluded_categories = '', $start = true) {
   
_deprecated_function( __FUNCTION__, '3.3.0' );

   
$posts = get_boundary_post($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->post_title) )
       
$post->post_title = $start ? __('First Post') : __('Last Post');

   
$date = mysql2date(get_option('date_format'), $post->post_date);

   
$title = str_replace('%title', $post->post_title, $title);
   
$title = str_replace('%date', $date, $title);
   
$title = apply_filters('the_title', $title, $post->ID);

   
$link = $start ? "<link rel='start' title='" : "<link rel='end' title='";
   
$link .= esc_attr($title);
   
$link .= "' href='" . get_permalink($post) . "' />\n";

   
$boundary = $start ? 'start' : 'end';
    return
apply_filters( "{$boundary}_post_rel_link", $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 = '%title', $in_same_cat = false, $excluded_categories = '') {
   
_deprecated_function( __FUNCTION__, '3.3.0' );

    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__, '3.3.0' );

   
$link = "<link rel='index' title='" . esc_attr( get_bloginfo( 'name', 'display' ) ) . "' href='" . esc_url( user_trailingslashit( get_bloginfo( 'url', 'display' ) ) ) . "' />\n";
    return
apply_filters( "index_rel_link", $link );
}

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

    echo
get_index_rel_link();
}

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

    if ( ! empty(
$GLOBALS['post'] ) && ! empty( $GLOBALS['post']->post_parent ) )
       
$post = get_post($GLOBALS['post']->post_parent);

    if ( empty(
$post) )
        return;

   
$date = mysql2date(get_option('date_format'), $post->post_date);

   
$title = str_replace('%title', $post->post_title, $title);
   
$title = str_replace('%date', $date, $title);
   
$title = apply_filters('the_title', $title, $post->ID);

   
$link = "<link rel='up' title='";
   
$link .= esc_attr( $title );
   
$link .= "' href='" . get_permalink($post) . "' />\n";

    return
apply_filters( "parent_post_rel_link", $link );
}

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

    echo
get_parent_post_rel_link($title);
}

/**
 * Add the "Dashboard"/"Visit Site" 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__, '3.3.0' );

   
$user_id = get_current_user_id();

    if (
0 != $user_id ) {
        if (
is_admin() )
           
$wp_admin_bar->add_menu( array( 'id' => 'view-site', 'title' => __( 'Visit Site' ), 'href' => home_url() ) );
        elseif (
is_multisite() )
           
$wp_admin_bar->add_menu( array( 'id' => 'dashboard', 'title' => __( 'Dashboard' ), 'href' => get_dashboard_url( $user_id ) ) );
        else
           
$wp_admin_bar->add_menu( array( 'id' => 'dashboard', 'title' => __( 'Dashboard' ), 'href' => 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__, '3.3.0', 'is_user_member_of_blog()' );

    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__, '3.4.0', 'error_log()' );
    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__, '3.4.0', 'error_log()' );
    if ( ! empty(
$GLOBALS['debug'] ) )
       
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__, '3.4.0', 'error_log()' );
}

/**
 * Retrieve list of themes with theme data in theme directory.
 *
 * The theme is broken, if it doesn'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__, '3.4.0', 'wp_get_themes()' );

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

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

    foreach (
$themes as $theme ) {
       
$name = $theme->get('Name');
        if ( isset(
$wp_themes[ $name ] ) )
           
$wp_themes[ $name . '/' . $theme->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__, '3.4.0', 'wp_get_theme( $stylesheet )' );

   
$themes = get_themes();
    if (
is_array( $themes ) && 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__, '3.4.0', 'wp_get_theme()' );

    if (
$theme = get_option( 'current_theme' ) )
        return
$theme;

    return
wp_get_theme()->get('Name');
}

/**
 * Accepts matches array from preg_replace_callback in wpautop() or a string.
 *
 * Ensures that the contents of a `<pre>...</pre>` 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__, '3.4.0' );

    if (
is_array($matches) )
       
$text = $matches[1] . $matches[2] . "</pre>";
    else
       
$text = $matches;

   
$text = str_replace(array('<br />', '<br/>', '<br>'), array('', '', ''), $text);
   
$text = str_replace('<p>', "\n", $text);
   
$text = str_replace('</p>', '', $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 'wp_head'} 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 = '' ) {
   
_deprecated_function( __FUNCTION__, '3.4.0', 'add_theme_support( \'custom-header\', $args )' );
   
$args = array(
       
'wp-head-callback'    => $wp_head_callback,
       
'admin-head-callback' => $admin_head_callback,
    );
    if (
$admin_preview_callback )
       
$args['admin-preview-callback'] = $admin_preview_callback;
    return
add_theme_support( 'custom-header', $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__, '3.4.0', 'remove_theme_support( \'custom-header\' )' );
    return
remove_theme_support( 'custom-header' );
}

/**
 * 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 'wp_head'} 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 = '', $admin_head_callback = '', $admin_preview_callback = '' ) {
   
_deprecated_function( __FUNCTION__, '3.4.0', 'add_theme_support( \'custom-background\', $args )' );
   
$args = array();
    if (
$wp_head_callback )
       
$args['wp-head-callback'] = $wp_head_callback;
    if (
$admin_head_callback )
       
$args['admin-head-callback'] = $admin_head_callback;
    if (
$admin_preview_callback )
       
$args['admin-preview-callback'] = $admin_preview_callback;
    return
add_theme_support( 'custom-background', $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__, '3.4.0', 'remove_theme_support( \'custom-background\' )' );
    return
remove_theme_support( 'custom-background' );
}

/**
 * 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__, '3.4.0', 'wp_get_theme()' );
   
$theme = new WP_Theme( wp_basename( dirname( $theme_file ) ), dirname( dirname( $theme_file ) ) );

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

    foreach (
apply_filters( 'extra_theme_headers', array() ) as $extra_header ) {
        if ( ! isset(
$theme_data[ $extra_header ] ) )
           
$theme_data[ $extra_header ] = $theme->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 $pages list of page objects
 */
function update_page_cache( &$pages ) {
   
_deprecated_function( __FUNCTION__, '3.4.0', 'update_post_cache()' );

   
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 'all_page_ids' and 'get_pages'.
 *
 * @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__, '3.4.0', 'clean_post_cache()' );

   
clean_post_cache( $id );
}

/**
 * Retrieve nonce action "Are you sure" 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__, '3.4.1', 'wp_nonce_ays()' );
    return
__( 'Are you sure you want to do this?' );
}

/**
 * Display "sticky" 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__, '3.5.0', 'post_class()' );
    if (
is_sticky( $post_id ) )
        echo
' sticky';
}

/**
 * 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 $post Post object, passed by reference (unused).
 */
function _get_post_ancestors( &$post ) {
   
_deprecated_function( __FUNCTION__, '3.5.0' );
}

/**
 * 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__, '3.5.0', 'wp_get_image_editor()' );

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

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

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

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

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

    if ( !
is_gd_image( $image ) ) {
       
/* translators: %s: File name. */
       
return sprintf( __( 'File &#8220;%s&#8221; is not an image.' ), $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__, '3.5.0', 'wp_get_image_editor()' );

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

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

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

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

    return
$dest_file;
}

/**
 * Retrieve a single post, based on post ID.
 *
 * Has categories in 'post_category' property or key. Has tags in 'tags_input'
 * 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__, '3.5.0', 'get_post()' );
    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__, '3.5.0', 'wp_authenticate()' );
   
$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__, '3.5.0', 'wp_image_editor_supports()' );

    if (
function_exists('imagetypes') ) {
        switch(
$mime_type ) {
            case
'image/jpeg':
                return (
imagetypes() & IMG_JPG) != 0;
            case
'image/png':
                return (
imagetypes() & IMG_PNG) != 0;
            case
'image/gif':
                return (
imagetypes() & IMG_GIF) != 0;
            case
'image/webp':
                return (
imagetypes() & IMG_WEBP) != 0;
        }
    } else {
        switch(
$mime_type ) {
            case
'image/jpeg':
                return
function_exists('imagecreatefromjpeg');
            case
'image/png':
                return
function_exists('imagecreatefrompng');
            case
'image/gif':
                return
function_exists('imagecreatefromgif');
            case
'image/webp':
                return
function_exists('imagecreatefromwebp');
        }
    }
    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__, '3.6.0', 'size_format()' );

   
$units = array( 0 => 'B', 1 => 'KB', 2 => 'MB', 3 => 'GB', 4 => 'TB' );
   
$log   = log( $bytes, KB_IN_BYTES );
   
$power = (int) $log;
   
$size  = KB_IN_BYTES ** ( $log - $power );

    if ( !
is_nan( $size ) && 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 "tidy", e.g. trim.
 * @return string Trimmed search terms.
 */
function _search_terms_tidy( $t ) {
   
_deprecated_function( __FUNCTION__, '3.7.0' );
    return
trim( $t, "\"'\n\r " );
}

/**
 * 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__, '3.9.0' );

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

    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__, '3.9.0' );
    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__, '4.0.0', 'wpdb::esc_like()' );
    return
str_replace( array( "%", "_" ), array( "\\%", "\\_" ), $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__, '4.0.0' );

   
$response = wp_remote_get( set_url_scheme( $url, 'https' ) );

    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__, '4.3.0' );
}

/**
 * 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__, '4.3.0' );
    return
'';
}

/**
 * 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__, '4.3.0' );
    return
'';
}

/**
 * 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__, '4.3.0' );
    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__, '4.3.0' );
    return
'';
}

/**
 * Formats text for the rich text editor.
 *
 * The {@see 'richedit_pre'} 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__, '4.3.0', 'format_for_editor()' );

    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( 'richedit_pre', '' );
    }

   
$output = convert_chars($text);
   
$output = wpautop($output);
   
$output = htmlspecialchars($output, ENT_NOQUOTES, get_option( 'blog_charset' ) );

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

/**
 * Formats text for the HTML editor.
 *
 * Unless $output is empty it will pass through htmlspecialchars before the
 * {@see 'htmledit_pre'} 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__, '4.3.0', 'format_for_editor()' );

    if ( !empty(
$output) )
       
$output = htmlspecialchars($output, ENT_NOQUOTES, get_option( 'blog_charset' ) ); // Convert only '< > &'.

    /**
     * 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( 'htmledit_pre', $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_id Optional. Post ID or WP_Post object. Default is global $post.
 * @return string|false
 */
function post_permalink( $post_id = 0 ) {
   
_deprecated_function( __FUNCTION__, '4.4.0', 'get_permalink()' );

    return
get_permalink( $post_id );
}

/**
 * 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 bool|string False on failure and string of headers if HEAD request.
 */
function wp_get_http( $url, $file_path = false, $red = 1 ) {
   
_deprecated_function( __FUNCTION__, '4.4.0', 'WP_Http' );

    @
set_time_limit( 60 );

    if (
$red > 5 )
        return
false;

   
$options = array();
   
$options['redirection'] = 5;

    if (
false == $file_path )
       
$options['method'] = 'HEAD';
    else
       
$options['method'] = 'GET';

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

    if (
is_wp_error( $response ) )
        return
false;

   
$headers = wp_remote_retrieve_headers( $response );
   
$headers['response'] = wp_remote_retrieve_response_code( $response );

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

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

   
// GET request - write it to the supplied filename.
   
$out_fp = fopen($file_path, 'w');
    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__, '4.4.0', 'force_ssl_admin()' );
    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__, '4.5.0' );

    return
'';
}

/**
 * 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__, '4.5.0' );

    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__, '4.5.0' );
}

/**
 * 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__, '4.5.0' );
   
$text = preg_replace('/<a (.+?)>/i', "<a $1 target='_blank' rel='external'>", $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__, '4.6.0' );

    return
'';
}

/**
 * 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__, '4.7.0' );

    return
get_query_template( 'paged' );
}

/**
 * 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__, '4.7.0' );

    return
preg_replace( '%&\s*\{[^}]*(\}\s*;?|$)%', '', $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__, '4.7.0', 'wp_list_sort()' );

    if (
$a->term_id > $b->term_id )
        return
1;
    elseif (
$a->term_id < $b->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__, '4.7.0', 'wp_list_sort()' );

    return
strcmp( $a->name, $b->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__, '4.7.0', 'wp_list_sort()' );

    if ( empty(
$_menu_item_sort_prop ) )
        return
0;

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

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

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

/**
 * Retrieves the Press This bookmarklet link.
 *
 * @since 2.6.0
 * @deprecated 4.9.0
 *
 */
function get_shortcut_link() {
   
_deprecated_function( __FUNCTION__, '4.9.0' );

   
$link = '';

   
/**
     * 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( 'shortcut_link', $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__, '4.9.0' );
    if (
is_plugin_active( 'press-this/press-this-plugin.php' ) ) {
        include
WP_PLUGIN_DIR . '/press-this/class-wp-press-this-plugin.php';
       
$wp_press_this = new WP_Press_This_Plugin();
       
$wp_press_this->save_post();
    } else {
       
wp_send_json_error( array( 'errorMessage' => __( 'The Press This plugin is required.' ) ) );
    }
}

/**
* 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__, '4.9.0' );
    if (
is_plugin_active( 'press-this/press-this-plugin.php' ) ) {
        include
WP_PLUGIN_DIR . '/press-this/class-wp-press-this-plugin.php';
       
$wp_press_this = new WP_Press_This_Plugin();
       
$wp_press_this->add_category();
    } else {
       
wp_send_json_error( array( 'errorMessage' => __( 'The Press This plugin is required.' ) ) );
    }
}

/**
 * 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__, '5.4.0', 'wp_get_user_request()' );
    return
wp_get_user_request( $request_id );
}

/**
 * Filters 'img' elements in post content to add 'srcset' and 'sizes' 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 'srcset' and 'sizes' attributes added to images.
 */
function wp_make_content_images_responsive( $content ) {
   
_deprecated_function( __FUNCTION__, '5.5.0', 'wp_filter_content_tags()' );

   
// 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() {  // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionNameInvalid
    // register_globals was deprecated in PHP 5.3 and removed entirely in PHP 5.4.
   
_deprecated_function( __FUNCTION__, '5.5.0' );
}

/**
 * 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's IP address
 * @param string $user_agent The author'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__, '5.5.0', 'wp_check_comment_disallowed_list()' );

    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__, '5.5.0', '_wp_register_meta_args_allowed_list()' );

    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.
 *
 * @global array $allowed_options
 *
 * @param array        $new_options
 * @param string|array $options
 * @return array
 */
function add_option_whitelist( $new_options, $options = '' ) {
   
_deprecated_function( __FUNCTION__, '5.5.0', 'add_allowed_options()' );

    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.
 *
 * @global array $allowed_options
 *
 * @param array        $del_options
 * @param string|array $options
 * @return array
 */
function remove_option_whitelist( $del_options, $options = '' ) {
   
_deprecated_function( __FUNCTION__, '5.5.0', 'remove_allowed_options()' );

    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, 'addslashes_strings_only' );
}

/**
 * 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 'wp_head'} callback:
 *
 *     add_action( 'wp_head', 'noindex' );
 *
 * @see wp_no_robots()
 *
 * @since 2.1.0
 * @deprecated 5.7.0 Use wp_robots_noindex() instead on 'wp_robots' filter.
 */
function noindex() {
   
_deprecated_function( __FUNCTION__, '5.7.0', 'wp_robots_noindex()' );

   
// If the blog is not public, tell robots to go away.
   
if ( '0' == get_option( 'blog_public' ) ) {
       
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 'wp_head'} callback:
 *
 *     add_action( 'wp_head', 'wp_no_robots' );
 *
 * @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 'wp_robots' filter.
 */
function wp_no_robots() {
   
_deprecated_function( __FUNCTION__, '5.7.0', 'wp_robots_no_robots()' );

    if (
get_option( 'blog_public' ) ) {
        echo
"<meta name='robots' content='noindex,follow' />\n";
        return;
    }

    echo
"<meta name='robots' content='noindex,nofollow' />\n";
}

/**
 * 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 'wp_head'} callback:
 *
 *     add_action( 'wp_head', 'wp_sensitive_page_meta' );
 *
 * @since 5.0.1
 * @deprecated 5.7.0 Use wp_robots_sensitive_page() instead on 'wp_robots' filter
 *                   and wp_strict_cross_origin_referrer() on 'wp_head' action.
 *
 * @see wp_robots_sensitive_page()
 */
function wp_sensitive_page_meta() {
   
_deprecated_function( __FUNCTION__, '5.7.0', 'wp_robots_sensitive_page()' );

   
?>
   <meta name='robots' content='noindex,noarchive' />
    <?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__, '5.8.0', '_excerpt_render_inner_blocks()' );

    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__, '5.9.1', 'wp_get_duotone_filter_property()' );

    return
wp_get_duotone_filter_property( $preset );
}

/**
 * Checks whether serialization of the current block'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's border properties
 *              should occur.
 */
function wp_skip_border_serialization( $block_type ) {
   
_deprecated_function( __FUNCTION__, '6.0.0', 'wp_should_skip_block_supports_serialization()' );

   
$border_support = _wp_array_get( $block_type->supports, array( '__experimentalBorder' ), false );

    return
is_array( $border_support ) &&
       
array_key_exists( '__experimentalSkipSerialization', $border_support ) &&
       
$border_support['__experimentalSkipSerialization'];
}

/**
 * Checks whether serialization of the current block'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 & classes.
 */
function wp_skip_dimensions_serialization( $block_type ) {
   
_deprecated_function( __FUNCTION__, '6.0.0', 'wp_should_skip_block_supports_serialization()' );

   
$dimensions_support = _wp_array_get( $block_type->supports, array( '__experimentalDimensions' ), false );

    return
is_array( $dimensions_support ) &&
       
array_key_exists( '__experimentalSkipSerialization', $dimensions_support ) &&
       
$dimensions_support['__experimentalSkipSerialization'];
}

/**
 * Checks whether serialization of the current block'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 & classes.
 */
function wp_skip_spacing_serialization( $block_type ) {
   
_deprecated_function( __FUNCTION__, '6.0.0', 'wp_should_skip_block_supports_serialization()' );

   
$spacing_support = _wp_array_get( $block_type->supports, array( 'spacing' ), false );

    return
is_array( $spacing_support ) &&
       
array_key_exists( '__experimentalSkipSerialization', $spacing_support ) &&
       
$spacing_support['__experimentalSkipSerialization'];
}

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