/** * 获取实例 * @access public * @return XF_View_Helper */ public static function getInstance() { if (self::$_instance === null) { self::$_instance = new self(); } return self::$_instance; }
/** * Stylesheet * @param string $var * @return XF_View_Helper_Header_Stylesheet */ public function headStylesheet($var = null) { return XF_View_Helper::getInstance()->headeStylesheet($var); }