/** * Displays the widget * * @since 0.1 * @access public * * @used by register_widget * * @param array $args * @param array $instance */ public static function the_docs_tree($tag = 'ul', &$group_id) { $tree = new self(); $posts = $tree->read_tree(); $tree->print_tree($posts, $tag); $group_id = $tree->group_id; }