xyzshop/helper/refill/api/xyz/meihan/RefillCallBack.php

<?php
namespace refill\meihan;

require_once(BASE_HELPER_RAPI_PATH . '/meihan/config.php');

use refill;
class RefillCallBack implements refill\IRefillCallBack
{
    public function verify($params): bool
    {
        $input = $params;
        unset($input['sign']);
        $sign = $this->sign($input);
        if ($params['sign'] == $sign) {
            return true;
        } else {
            return false;
        }
    }

    private function sign($params)
    {
        $params['appSecret'] = config::APP_SECRET;
        ksort($params);
        $content = '';
        foreach ($params as $key => $value) {
            if($this->check_empty($value) === false) {
                $content .= "{$key}={$value}&";
            }
        }
        $content = rtrim($content, '&');
        return md5($content);
    }

    private function check_empty($value)
    {
        if (!isset($value))
            return true;
        if ($value === null)
            return true;
        if (trim($value) === "")
            return true;

        return false;
    }

    public function notify($params)
    {
        $status = intval($params['orderStatus']);
        $order_sn = $params['outOrderId'];
        $order_info = Model('vr_order')->getOrderInfoForNotify(['order_sn' => $order_sn]);
        if (empty($order_info)) {
            return [false, false, false,false];
        }

        $order_id = $order_info['order_id'];
        if ($status === 2) {
            $data['official_sn'] = strtolower($params['ext1']) == 'null' ? '' : $params['ext1'];
            Model('refill_order')->edit($order_id, $data);
            return [$order_id, true, false, true];
        } elseif ($status === 3) {
            return [$order_id, false, true, true];
        } else {
            return [$order_id, false, false, false];
        }
    }
}