public static function &getInstance() { if (self::$_instance === null) { self::$_instance = new self(); } return self::$_instance; }
/** * 获取当前城市是否开通房源库 * @param $cityId * @return array */ public function getCityConfig($cityId) { if (!is_numeric($cityId)) { return array(); } return Model_Fyk_CityConfig::getInstance()->getCityConfig($cityId); }