Fatal error: Uncaught Error: Call to undefined function controller\isIpGW() in /www/wwwroot/yangzhan/controller/Com.php:44 Stack trace: #0 /www/wwwroot/yangzhan/index.php(7): controller\Com->__construct() #1 {main} thrown in /www/wwwroot/yangzhan/controller/Com.php on line 44