微信扫码支付问题

<?php

namespace App\Facades;

use EasyWeChat\Payment\Order;
use SimpleSoftwareIO\QrCode\Facades\QrCode;

class WeChat
{
    //这个函数是产生二维码
    public static function getImg($tradeNo, $title, $money)
    {
        $attributes = [
            'body'         => $title,
            'detail'       => $title,
            'total_fee'    => $money * 100,
            'out_trade_no' => $tradeNo,
            'notify_url'   => url('/api/weixin/notify'),
            'trade_type'   => 'NATIVE',
        ];
        $order = new Order($attributes);
        $weChat = app('wechat');
        $payment = $weChat->payment;
        $result = $payment->prepare($order);
        if ($result->return_code == 'SUCCESS' && $result->result_code == 'SUCCESS') {
            $codeUrl = $result->code_url;
            $img = QrCode::size(300)->generate($codeUrl);
            return $img;
        }
        return false;
    }
}

然后我扫完支付回，我的地址/api/weixin/notify..收到微信5次的回调，一模一样的