how a link to the author's feed and use this image URL as * clickable anchor. Default empty. * @type string $feed_type The feed type to link to. Possible values include 'rss2', 'atom'. * Default is the value of get_default_feed(). * @type bool $echo Whether to output the result or instead return it. Default true. * @type string $style If 'list', each author is wrapped in an `
  • ` element, otherwise the authors * will be separated by commas. * @type bool $html Whether to list the items in HTML form or plaintext. Default true. * @type int[]|string $exclude Array or comma/space-separated list of author IDs to exclude. Default empty. * @type int[]|string $include Array or comma/space-separated list of author IDs to include. Default empty. * } * @return void|string Void if 'echo' argument is true, list of authors if 'echo' is false. */ function wp_list_authors( $args = '' ) { global $wpdb; $defaults = array( 'orderby' => 'name', 'order' => 'ASC', 'number' => '', 'optioncount' => false, 'exclude_admin' => true, 'show_fullname' => false, 'hide_empty' => true, 'feed' => '', 'feed_image' => '', 'feed_type' => '', 'echo' => true, 'style' => 'list', 'html' => true, 'exclude' => '', 'include' => '', ); $parsed_args = wp_parse_args( $args, $defaults ); $return = ''; $query_args = wp_array_slice_assoc( $parsed_args, array( 'orderby', 'order', 'number', 'exclude', 'include' ) ); $query_args['fields'] = 'ids'; /** * Filters the query arguments for the list of all authors of the site. * * @since 6.1.0 * * @param array $query_args The query arguments for get_users(). * @param array $parsed_args The arguments passed to wp_list_authors() combined with the defaults. */ $query_args = apply_filters( 'wp_list_authors_args', $query_args, $parsed_args ); $authors = get_users( $query_args ); $post_counts = array(); /** * Filters whether to short-circuit performing the query for author post counts. * * @since 6.1.0 * * @param int[]|false $post_counts Array of post counts, keyed by author ID. * @param array $parsed_args The arguments passed to wp_list_authors() combined with the defaults. */ $post_counts = apply_filters( 'pre_wp_list_authors_post_counts_query', false, $parsed_args ); if ( ! is_array( $post_counts ) ) { $post_counts = array(); $post_counts_query = $wpdb->get_results( "SELECT DISTINCT post_author, COUNT(ID) AS count FROM $wpdb->posts WHERE " . get_private_posts_cap_sql( 'post' ) . ' GROUP BY post_author' ); foreach ( (array) $post_counts_query as $row ) { $post_counts[ $row->post_author ] = $row->count; } } foreach ( $authors as $author_id ) { $posts = isset( $post_counts[ $author_id ] ) ? $post_counts[ $author_id ] : 0; if ( ! $posts && $parsed_args['hide_empty'] ) { continue; } $author = get_userdata( $author_id ); if ( $parsed_args['exclude_admin'] && 'admin' === $author->display_name ) { continue; } if ( $parsed_args['show_fullname'] && $author->first_name && $author->last_name ) { $name = sprintf( /* translators: 1: User's first name, 2: Last name. */ _x( '%1$s %2$s', 'Display name based on first name and last name' ), $author->first_name, $author->last_name ); } else { $name = $author->display_name; } if ( ! $parsed_args['html'] ) { $return .= $name . ', '; continue; // No need to go further to process HTML. } if ( 'list' === $parsed_args['style'] ) { $return .= '
  • '; } $link = sprintf( '%3$s', esc_url( get_author_posts_url( $author->ID, $author->user_nicename ) ), /* translators: %s: Author's display name. */ esc_attr( sprintf( __( 'Posts by %s' ), $author->display_name ) ), $name ); if ( ! empty( $parsed_args['feed_image'] ) || ! empty( $parsed_args['feed'] ) ) { $link .= ' '; if ( empty( $parsed_args['feed_image'] ) ) { $link .= '('; } $link .= ''; } else { $link .= $name; } $link .= ''; if ( empty( $parsed_args['feed_image'] ) ) { $link .= ')'; } } if ( $parsed_args['optioncount'] ) { $link .= ' (' . $posts . ')'; } $return .= $link; $return .= ( 'list' === $parsed_args['style'] ) ? '
  • ' : ', '; } $return = rtrim( $return, ', ' ); if ( $parsed_args['echo'] ) { echo $return; } else { return $return; } } /** * Determines whether this site has more than one author. * * Checks to see if more than one author has published posts. * * 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 3.2.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @return bool Whether or not we have more than one author */ function is_multi_author() { global $wpdb; $is_multi_author = get_transient( 'is_multi_author' ); if ( false === $is_multi_author ) { $rows = (array) $wpdb->get_col( "SELECT DISTINCT post_author FROM $wpdb->posts WHERE post_type = 'post' AND post_status = 'publish' LIMIT 2" ); $is_multi_author = 1 < count( $rows ) ? 1 : 0; set_transient( 'is_multi_author', $is_multi_author ); } /** * Filters whether the site has more than one author with published posts. * * @since 3.2.0 * * @param bool $is_multi_author Whether $is_multi_author should evaluate as true. */ return apply_filters( 'is_multi_author', (bool) $is_multi_author ); } /** * Helper function to clear the cache for number of authors. * * @since 3.2.0 * @access private */ function __clear_multi_author_cache() { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionDoubleUnderscore,PHPCompatibility.FunctionNameRestrictions.ReservedFunctionNames.FunctionDoubleUnderscore delete_transient( 'is_multi_author' ); }