/** * Change the private $language_is_all property. * * @static * @access public * @param bool $is_all Whether we're on the "all" language option or not. * @return null|void */ public static function set_language_is_all($is_all) { if (true === $is_all) { self::$language_is_all = true; return; } self::$language_is_all = false; }