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

<?php

namespace refill\yelin_tax;

class config
{
    const ORDER_URL = 'https://ylapi.xyzshops.cn/mobile/index.php';

    const MCH_ID = 10324;
    const KEY = '66222bf56e7d1d59ed48d38f5b666228';
    const NOTIFY_URL = BASE_SITE_URL . "/mobile/callback/refill_yelin_tax.php";
}