</div> <?php } ?> </li> <?php } ?> </ul> </li> <?php } } public static function get_icon($key) { $icons = (include WPV_EDITOR_ASSETS_DIR . 'fonts/icomoon/list.php'); if (isset($icons[$key])) { return "&#{$icons[$key]};"; } return $key; } public static function get_instance() { if (!isset(self::$instance)) { self::$instance = new self(); } return self::$instance; } } WPV_Editor::get_instance();