fastadmin支付宝微信插件转账完整函数

fastadmin支付宝微信插件转账完整函数示例如下，需要安装 overtrue/wechat

function wechat_transfer($orderSn, $openid, $amount, $notifyUrl)
{
    $payConfig = \addons\epay\library\Service::getConfig();

    // 商户号
    $merchantId = $payConfig['mch_id'];


    // 从本地文件中加载「商户API私钥」，「商户API私钥」会用来生成请求的签名
//        $merchantPrivateKeyFilePath = 'file://' . '/www/wwwroot/www.example.com/addons/epay/certs/apiclient_key.pem';
    $merchantPrivateKeyFilePath = 'file://' . $payConfig['cert_key'];
    $merchantPrivateKeyInstance = Rsa::from($merchantPrivateKeyFilePath, Rsa::KEY_TYPE_PRIVATE);
    // 「商户API证书」的「证书序列号」
    //serial=
    $merchantCertificateSerial = '这里填写微信的证书序列号';

    // 从本地文件中加载「微信支付平台证书」，用来验证微信支付应答的签名
    $filePath = root_path('/addons/epay/certs/') . 'wechatpay_17C92D85342F634DA3F018D9D09405D60CB06.pem';
    $platformCertificateFilePath = 'file://' . $filePath;
    $platformPublicKeyInstance = Rsa::from($platformCertificateFilePath, Rsa::KEY_TYPE_PUBLIC);
    // 从「微信支付平台证书」中获取「证书序列号」
    $platformCertificateSerial = PemUtil::parseCertificateSerialNo($platformCertificateFilePath);

    // 构造一个 APIv3 客户端实例
    $instance = \WeChatPay\Builder::factory([
        'mchid' => $merchantId,
        'serial' => $merchantCertificateSerial,
        'privateKey' => $merchantPrivateKeyInstance,
        'certs' => [
            $platformCertificateSerial => $platformPublicKeyInstance,
        ],
    ]);

    // 加密敏感信息
    $encryptor = static function (string $msg) use ($platformPublicKeyInstance): string {
        return \WeChatPay\Crypto\Rsa::encrypt($msg, $platformPublicKeyInstance);
    };

    //php CertificateDownloader.php
    // -k ${32位密码}
    // -m ${商户号}
    // -f ${商户API私钥}
    // -s ${商户API证书的证书序列号}
    // -o ${获取平台证书后的保存路径}

    // 商家转账到零钱
    $response = $instance
        ->chain('v3/transfer/batches')
        ->post(['json' => [
            'appid' => $payConfig['miniapp_id'],
            'out_batch_no' => $orderSn, //商户系统内部的商家批次单号，要求此参数只能由数字、大小写字母组成，在商户系统内部唯一,
            'batch_name' => date('Y-m', time()) . ' - 领取红包',       //该笔批量转账的名称
            'batch_remark' => "领取红包", //转账说明，UTF8编码，最多允许32个字符
            'total_amount' => intval(strval($amount * 100)), //转账总金额 单位为“分”
            'total_num' => 1,
            'transfer_detail_list' => [
                [
                    'out_detail_no' => makePaySn(1),
                    'transfer_amount' => intval(strval($amount * 100)),
                    'transfer_remark' => "领取红包",
                    'openid' => $openid,
                    //'user_name'         => $encryptor($params['name']) // 金额超过`2000`才填写
                ]
            ]
        ]]);
    Log::info("转账结果");
    Log::info($orderSn);
    Log::info($response);
    return $response;

}