wanyue_app/app/common/payment/Tlpay.php

<?php
namespace app\common\payment;

use Payment\Client\Refund;
use Payment\Config;
use Payment\Common\PayException;
use support\Cache;

class Tlpay
{
    protected $config;

    public function __construct()
    {
        $this->config = config('payment.tl');
    }

    public function refund($data)
    {
        if (!$data){
            return json_fail('参数异常');
        }

        try {
            $ret = Refund::run(Config::TL_REFUND, $this->config, $data);

            file_put_contents(runtime_path('logs/tlpay.log'),json_encode($ret, JSON_UNESCAPED_UNICODE));
            return $ret;
        } catch (PayException $e) {
            throw new PayException("发起退款失败");
        }

    }
}