frontend\controllers\PaymentController::actionWxpayOrderNotify PHP Method

    public function actionWxpayOrderNotify()
    {
        Yii::$app->response->format = Response::FORMAT_RAW;
        require_once Yii::getAlias('@vendor') . "/payment/wxpay/class/PayNotifyCallBack.php";
        $notify = new \PayNotifyCallBack();
        $notify->Handle(false);
    }