将PHP与微信红包功能集成的实例代码

<?php
// 引入微信支付 SDK
require_once 'path/to/wechatpay-sdk-php/autoload.php';

use WechatPay\GuzzleMiddleware\Util\PemUtil;
use WechatPay\GuzzleMiddleware\WechatPayMiddleware;
use GuzzleHttp\Client;
use GuzzleHttp\HandlerStack;

// 微信支付配置
$merchantId = 'YOUR_MERCHANT_ID'; // 替换为您的商户号（MCHID）
$apiKey = 'YOUR_API_KEY'; // 替换为您的API密钥
$certPath = 'path/to/apiclient_cert.pem'; // 替换为您的证书文件路径
$keyPath = 'path/to/apiclient_key.pem'; // 替换为您的私钥文件路径

// 初始化微信支付 SDK
$wechatPayMiddleware = WechatPayMiddleware::builder()
    ->withMerchant($merchantId, $apiKey)
    ->withCert(PemUtil::loadCertificate($certPath), PemUtil::loadPrivateKey($keyPath))
    ->build();

$stack = HandlerStack::create();
$stack->push($wechatPayMiddleware, 'wechatpay');

$client = new Client(['handler' => $stack]);

// 构建红包请求参数
$data = [
    'mch_billno' => 'YOUR_BILL_NO', // 替换为您的商户订单号
    'send_name' => '红包发送者名称',
    're_openid' => 'RECEIVER_OPENID', // 替换为红包接收者的用户openid
    'total_amount' => 100, // 替换为红包金额（单位：分）
    'total_num' => 1, // 替换为红包发送数量
    'wishing' => '祝福语',
    'act_name' => '活动名称',
    'remark' => '备注',
];

// 发送红包请求
$response = $client->request('POST', 'https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack', [
    'json' => $data,
]);

// 处理支付结果
$result = json_decode($response->getBody(), true);

if ($result['return_code'] === 'SUCCESS' && $result['result_code'] === 'SUCCESS') {
    echo '红包发送成功';
} else {
    echo '红包发送失败：' . $result['return_msg'];
}
?>