class TestsController extends AppController
{
    public function index()
    {
//        $db = mysqli_connect('xx.xx.xx.xx', 'username', 'password');
//        $db = mysqli_connect('127.0.0.1', 'root', 'root');
//        $db = mysqli_connect('localhost', 'root', 'root');

        if(!$db){
            print_r(mysqli_connect_error());
        }else{
            echo "ok";
        }

        exit;
    }
}