/** * Get an instance of the page extension but don't initialize it. * * Useful for using some methods during AJAX call. * * @return WPCF_GUI_Term_Field_Editing * @since 2.1 */ public static function get_instance() { if (null == self::$instance) { self::$instance = new self(); } return self::$instance; }
public static function initialize() { if (null == self::$instance) { self::$instance = new self(); } }