xyzshop/helper/refill/api/xyz/huishi/config.php

<?php
namespace refill\huishi;

class config
{
    const ORDER_URL = 'https://telephone-grant.hijin.vip/api/v1/submitOrder';
    const QUERY_URL = 'https://telephone-grant.hijin.vip/api/v1/queryOrder';
    const BALANCE_URL = 'https://telephone-grant.hijin.vip/api/v1/queryAccount';

    const API_KEY = '07onE26tNyaU';
    const API_SECRET = '12bc663f78ac1ed8cffb6be228db7a9c';
    const NOTIFY_URL = BASE_SITE_URL . "/mobile/callback/refill_huishi.php";
    const ExtHeaders = ['Content-Type: application/json;charset=UTF-8'];

    public static function pub_params()
    {
        $cur_time = microtime (true);
        $cur_time = intval($cur_time * 1000);

        $params['timestamp'] = $cur_time;
        $params['sign'] = self::sign($cur_time);
        $params['api_key'] = config::API_KEY;
        return $params;
    }

    public static function sign($timestamp)
    {
        return strtolower(md5(strtolower(md5(config::API_KEY . $timestamp)) . config::API_SECRET));
    }
}