<?php namespace app\service\wx; use EasyWeChat\Factory; use EasyWeChat\Payment\Application; use think\facade\Config; /** * 微信支付 * Class WechatPay * @package app\service\wx */ class WechatPay { private static $app = null; private function __construct() { } private function __clone() { } //微信支付实例 单例模式 public static function getInstance(): ?Application { if (self::$app == null) { Config::load('extra/wechat', 'wechat'); $conf = config('wechat'); $config = [ // 必要配置 'app_id' => $conf['applets_appId'],//此处使用的小程序APPID 'mch_id' => $conf['mchid'], 'key' => $conf['key'], // API 密钥 // 如需使用敏感接口(如退款、发送红包等)需要配置 API 证书路径(登录商户平台下载 API 证书) 'cert_path' => root_path().'config/cert/apiclient_cert.pem', // XXX: 绝对路径!!!! 'key_path' => root_path().'config/cert/apiclient_key.pem', // XXX: 绝对路径!!!! 'notify_url' => $conf['applets_notify_url'], // 你也可以在下单时单独设置来想覆盖它 ]; self::$app = Factory::payment($config); } return self::$app; } }