education/app/Servers/WechatMini/MiniPay.php

<?php namespace App\Servers\WechatMini;

use EasyWeChat\Factory;
use Ixudra\Curl\Facades\Curl;
/**
 * 微信小程序
 * 
 */
class MiniPay
{
    protected $payment;

    public function __construct(Factory $factory)
    {
        $this->payment = $factory->payment(config('wechat.mini_pay',[]));
    }
    /**
     * 微信小程序支付下单
     *
     */
    public function unifiedOrder($request)
    {
        $result = $this->payment->order->unify([
            'body' => $request->get('body'), // 商品描述
            'out_trade_no' => $request->get('out_trade_no'), // 商户订单号
            'total_fee' => $request->get('total_fee'), // 订单金额
            'notify_url' => $request->get('notify_url'), // 支付结果通知地址
        ]);

        if ($result['return_code'] === 'SUCCESS' && !isset($result['err_code'])) {
            $prepayId = $result['prepay_id'];
            $json = $this->payment->jssdk->sdkConfig($prepayId);
            return response()->json($json);
        } else {
            return response()->json(['error' => '创建订单失败'], 500);
        }
    }

}