使用 PHP SDK

1<?php
2  
3require_once('vendor/autoload.php');
4
5use WeChatPay\Builder;
6use WeChatPay\Crypto\Rsa;
7
8// 设置参数
9
10// 商户号
11$merchantId = '190000****';
12
13// 从本地文件中加载「商户API私钥」，「商户API私钥」会用来生成请求的签名
14$merchantPrivateKeyFilePath = 'file:///path/to/merchant/apiclient_key.pem';
15$merchantPrivateKeyInstance = Rsa::from($merchantPrivateKeyFilePath, Rsa::KEY_TYPE_PRIVATE);
16
17// 「商户API证书」的「证书序列号」
18$merchantCertificateSerial = '3775B6A45ACD588826D15E583A95F5DD********';
19
20// 从本地文件中加载「微信支付平台证书」(可使用证书下载工具得到），用来验证微信支付应答的签名
21$platformCertificateFilePath = 'file:///path/to/wechatpay/cert.pem';
22$platformPublicKeyInstance = Rsa::from($platformCertificateFilePath, Rsa::KEY_TYPE_PUBLIC);
23
24// 从「微信支付平台证书」中获取「证书序列号」
25$platformCertificateSerial = PemUtil::parseCertificateSerialNo($platformCertificateFilePath);
26
27// 构造一个 APIv3 客户端实例
28$instance = Builder::factory([
29    'mchid' => $merchantId,
30    'serial' => $merchantCertificateSerial,
31    'privateKey' => $merchantPrivateKeyInstance,
32    'certs' => [
33        $platformCertificateSerial => $platformPublicKeyInstance,
34    ],
35]);
36
37// 以 Native 支付为例，发送请求
38$resp = $instance -> chain('v3/pay/transactions/native') -> post(['json' => [
39        'mchid' => '1900006XXX',
40        'out_trade_no' => 'native12177525012014070332333',
41        'appid' => 'wxdace645e0bc2cXXX',
42        'description' => 'Image形象店-深圳腾大-QQ公仔',
43        'notify_url' => 'https://weixin.qq.com/',
44        'amount' => [
45            'total' => 1,
46            'currency' => 'CNY'
47        ],
48    ],
49    //在http请求增加一个Wechatpay-Serial请求头，具体作用可参考：https://pay.weixin.qq.com/doc/v3/merchant/4012154180#5.2-%E5%88%87%E6%8D%A2%E9%AA%8C%E7%AD%BE%E5%92%8C%E5%AE%9E%E7%8E%B0%E5%9B%9E%E8%B0%83%E5%85%BC%E5%AE%B9
50    'headers' => [
51        'Wechatpay-Serial' => '134912410000000000000xxxxxxx',
52    ],
53]);
54
55print_r(json_decode((string) $resp->getBody(), true));
56//当程序进入「异常捕获」逻辑，输出形如：
57{
58    "code": "RESOURCE_NOT_EXISTS",
59    "message": "无可用的平台证书，请在商户平台-API安全申请使用微信支付公钥。"
60}
61//即表示商户仅能使用微信支付公钥初始化模式

1<?php
2
3require_once('vendor/autoload.php');
4
5use WeChatPay\Builder;
6use WeChatPay\Crypto\Rsa;
7
8// 设置参数
9
10// 商户号
11$merchantId = '190000****';
12
13// 从本地文件中加载「商户API私钥」，「商户API私钥」会用来生成请求的签名
14$merchantPrivateKeyFilePath = 'file:///path/to/merchant/apiclient_key.pem';
15$merchantPrivateKeyInstance = Rsa::from($merchantPrivateKeyFilePath, Rsa::KEY_TYPE_PRIVATE);
16
17// 「商户API证书」的「证书序列号」
18$merchantCertificateSerial = '3775B6A45ACD588826D15E583A95F5DD********';
19
20//从本地文件中加载「微信支付公钥」，用来验证微信支付应答的签名
21$platformPublicKeyFilePath = 'file:///path/to/wechatpay/publickey.pem';
22$twoPlatformPublicKeyInstance = Rsa::from($platformPublicKeyFilePath, Rsa::KEY_TYPE_PUBLIC);
23
24// 「微信支付公钥」的「微信支付公钥ID」
25// 需要在 商户平台 -> 账户中心 -> API安全 查询
26$platformPublicKeyId = 'PUB_KEY_ID_01142321349124100000000000********';
27
28// 构造一个 APIv3 客户端实例
29$instance = Builder::factory([
30    'mchid' => $merchantId,
31    'serial' => $merchantCertificateSerial,
32    'privateKey' => $merchantPrivateKeyInstance,
33    'certs' => [
34        $platformPublicKeyId => $twoPlatformPublicKeyInstance,
35    ],
36]);
37
38// 以 Native 支付为例，发送请求
39$resp = $instance -> chain('v3/pay/transactions/native') -> post(['json' => [
40        'mchid' => '1900006XXX',
41        'out_trade_no' => 'native12177525012014070332333',
42        'appid' => 'wxdace645e0bc2cXXX',
43        'description' => 'Image形象店-深圳腾大-QQ公仔',
44        'notify_url' => 'https://weixin.qq.com/',
45        'amount' => [
46            'total' => 1,
47            'currency' => 'CNY'
48        ],
49    ],
50    //在http请求增加一个Wechatpay-Serial请求头，具体作用可参考：https://pay.weixin.qq.com/doc/v3/merchant/4012154180#5.2-%E5%88%87%E6%8D%A2%E9%AA%8C%E7%AD%BE%E5%92%8C%E5%AE%9E%E7%8E%B0%E5%9B%9E%E8%B0%83%E5%85%BC%E5%AE%B9
51    'headers' => [
52        'Wechatpay-Serial' => 'PUB_KEY_ID_0112232134912010000100000000',
53    ],
54]);
55print_r(json_decode((string) $resp ->getBody(), true));