Sans le savoir, le paiement WeChat a également été mis à jour, et la version de l'interface a également été mise à niveau vers la V3. Suite à la mise à niveau de WeChat, l'utilisation personnelle du paiement WeChat a également été mise à niveau : https://pay. weixin.qq.com /wiki/doc/apiv3/index.shtml.
La méthode d'utilisation est la même qu'avant (Paiement WeChat V2), vous pouvez l'utiliser en passant directement les paramètres :
La nouvelle version a ajouté composerl'installation pour faciliter l'utilisation du framework intégré (adresse Github) :
composer require fengkui/pay
Remplissez d'abord le fichier de configuration Complet (attention à ne pas le remplir de manière incorrecte, sinon cela provoquerait une erreur de signature) :
# 微信支付配置
$wechatConfig = [
'xcxid' => '', // 小程序 appid
'appid' => '', // 微信支付 appid
'mchid' => '', // 微信支付 mch_id 商户收款账号
'key' => '', // 微信支付 apiV3key（尽量包含大小写字母，否则验签不通过）
'appsecret' => '', // 公众帐号 secert (公众号支付获取 code 和 openid 使用)
'notify_url' => '', // 接收支付状态的连接 改成自己的回调地址
'redirect_url' => '', // 公众号支付，调起支付页面
'serial_no' => '', // 证书序列号
'cert_client' => './cert/apiclient_cert.pem', // 证书（退款，红包时使用）
'cert_key' => './cert/apiclient_key.pem', // 商户私钥（Api安全中下载）
'public_key' => './cert/public_key.pem', // 平台公钥（调动证书列表，自动生成）
];Méthodes liées à l'encapsulation de la classe de paiement :
| method | 描述 |
|---|---|
| js | JSAPI下单 |
| app | APP支付 |
| h5 | H5支付 |
| scan | Navicat支付 |
| xcx | 小程序支付 |
| query | 查询订单 |
| close | 关闭订单 |
| refund | 申请退款 |
| notify | 支付结果通知 |
Méthode d'utilisation (le paiement par mini-programme est utilisé comme un exemple ici) :
<?php
require_once('./vendor/autoload.php');
$config = []; // 支付配置
$order = [
'order_sn' => time(), // 订单编号
'total_amount' => 1, // 订单金额（分）
'body' => '测试商品', // 商品名称
'openid' => '', // 用户openid
// 'type' => 'Wap',
];
$wechat = new fengkui\Pay\Wechat($config);
$re = $wechat->xcx($order);
die(json_encode($re)); // JSON化直接返回小程序客户端Le code suivant est une classe de paiement complète qui est un fichier encapsulé (Wechat.php),
peut être modifié à volonté selon vos propres besoins. Les méthodes d'utilisation détaillées seront documentées ultérieurement :
<?php
/**
* @Author: [FENG] <1161634940@qq.com>
* @Date: 2019-09-06 09:50:30
* @Last Modified by: [FENG] <1161634940@qq.com>
* @Last Modified time: 2021-07-12 18:24:18
*/
namespace fengkui\Pay;
use Exception;
use RuntimeException;
use fengkui\Supports\Http;
/**
* Wechat 微信支付
* 新版（V3）接口（更新中）
*/
class Wechat
{
const AUTH_TAG_LENGTH_BYTE = 16;
// 新版相关接口
// GET 获取平台证书列表
private static $certificatesUrl = 'https://api.mch.weixin.qq.com/v3/certificates';
// 统一下订单管理
private static $transactionsUrl = 'https://api.mch.weixin.qq.com/v3/pay/transactions/';
// 申请退款
private static $refundUrl = 'https://api.mch.weixin.qq.com/v3/refund/domestic/refunds';
// 静默授权，获取code
private static $authorizeUrl = 'https://open.weixin.qq.com/connect/oauth2/authorize';
// 通过code获取access_token以及openid
private static $accessTokenUrl = 'https://api.weixin.qq.com/sns/oauth2/access_token';
// 支付完整配置
private static $config = array(
'xcxid' => '', // 小程序appid
'appid' => '', // 微信支付appid
'mchid' => '', // 微信支付 mch_id 商户收款账号
'key' => '', // 微信支付 apiV3key（尽量包含大小写字母，否则验签不通过）
'appsecret' => '', // 公众帐号 secert (公众号支付获取code 和 openid使用)
'notify_url' => '', // 接收支付状态的连接 改成自己的回调地址
'redirect_url' => '', // 公众号支付，调起支付页面
'serial_no' => '', // 证书序列号
'cert_client' => './cert/apiclient_cert.pem', // 证书（退款，红包时使用）
'cert_key' => './cert/apiclient_key.pem', // 商户私钥（Api安全中下载）
'public_key' => './cert/public_key.pem', // 平台公钥（调动证书列表，自动生成）
);
/**
* [__construct 构造函数]
* @param [type] $config [传递微信支付相关配置]
*/
public function __construct($config=NULL, $referer=NULL){
$config && self::$config = array_merge(self::$config, $config);
}
/**
* [unifiedOrder 统一下单]
* @param [type] $order [订单信息（必须包含支付所需要的参数）]
* @param boolean $type [区分是否是小程序，是则传 true]
* @return [type] [description]
* $order = array(
* 'body' => '', // 产品描述
* 'order_sn' => '', // 订单编号
* 'total_amount' => '', // 订单金额（分）
* );
*/
public static function unifiedOrder($order, $type=false)
{
$config = array_filter(self::$config);
// 获取配置项
$params = array(
'appid' => $type ? $config['xcxid'] : $config['appid'], // 由微信生成的应用ID
'mchid' => $config['mchid'], // 直连商户的商户号
'description' => $order['body'], // 商品描述
'out_trade_no' => (string)$order['order_sn'], // 商户系统内部订单号
'notify_url' => $config['notify_url'], // 通知URL必须为直接可访问的URL
'amount' => ['total' => (int)$order['total_amount'], 'currency' => 'CNY'], // 订单金额信息
);
!empty($order['attach']) && $params['attach'] = $order['attach']; // 附加数据
if (!empty($order['time_expire'])) { // 订单失效时间
preg_match('/[年\/-]/', $order['time_expire']) && $order['time_expire'] = strtotime($order['time_expire']);
$time = $order['time_expire'] > time() ? $order['time_expire'] : $order['time_expire'] + time();
$params['time_expire'] = date(DATE_ATOM, $time);
}
if (!in_array($order['type'], ['native'])) {
!empty($order['openid']) && $params['payer'] = ['openid' => $order['openid']];
$params['scene_info'] = ['payer_client_ip' => self::get_ip()];
}
if (in_array($order['type'], ['iOS', 'Android', 'Wap'])) {
$params['scene_info']['h5_info'] = ['type' => $order['type']];
$url = self::$transactionsUrl . 'h5'; // 拼接请求地址
} else {
$url = self::$transactionsUrl . strtolower($order['type']); // 拼接请求地址
}
$header = self::createAuthorization($url, $params, 'POST');
$response = Http::post($url, json_encode($params, JSON_UNESCAPED_UNICODE), $header);
$result = json_decode($response, true);
if (isset($result['code']) && isset($result['message'])) {
throw new \Exception("[" . $result['code'] . "] " . $result['message']);
}
return $result;
}
/**
* [query 查询订单]
* @param [type] $orderSn [订单编号]
* @param boolean $type [微信支付订单编号，是否是微信支付订单号]
* @return [type] [description]
*/
public static function query($orderSn, $type = false)
{
$config = self::$config;
$url = self::$transactionsUrl . ($type ? 'id/' : 'out-trade-no/') . $orderSn . '?mchid=' . $config['mchid'];
$params = '';
$header = self::createAuthorization($url, $params, 'GET');
$response = Http::get($url, $params, $header);
$result = json_decode($response, true);
return $result;
}
/**
* [close 关闭订单]
* @param [type] $orderSn [微信支付订单编号]
* @return [type] [description]
*/
public static function close($orderSn)
{
$config = self::$config;
$url = self::$transactionsUrl . 'out-trade-no/' . $orderSn . '/close';
$params['mchid'] = $config['mchid'];
$header = self::createAuthorization($url, $params, 'POST');
$response = Http::post($url, json_encode($params, JSON_UNESCAPED_UNICODE), $header);
$result = json_decode($response, true);
return true;
}
/**
* [js 获取jssdk需要用到的数据]
* @param [type] $order [订单信息数组]
* @return [type] [description]
*/
public static function js($order=[]){
$config = self::$config;
if (!is_array($order) || count($order) < 3)
die("订单数组信息缺失！");
if (count($order) == 4 && !empty($order['openid'])) {
$data = self::xcx($order, false, false); // 获取支付相关信息(获取非小程序信息)
return $data;
}
$code = !empty($order['code']) ? $order['code'] : ($_GET['code'] ?? '');
$redirectUri = $_SERVER['REQUEST_SCHEME'] . '://' . $_SERVER['HTTP_HOST'] . rtrim($_SERVER['REQUEST_URI'], '/') . '/'; // 重定向地址
$params = ['appid' => $config['appid']];
// 如果没有get参数没有code；则重定向去获取code；
if (empty($code)) {
$params['redirect_uri'] = $redirectUri; // 返回的url
$params['response_type'] = 'code';
$params['scope'] = 'snsapi_base';
$params['state'] = $order['order_sn']; // 获取订单号
$url = self::$authorizeUrl . '?'. http_build_query($params) .'#wechat_redirect';
} else {
$params['secret'] = $config['appsecret'];
$params['code'] = $code;
$params['grant_type'] = 'authorization_code';
$response = Http::get(self::$accessTokenUrl, $params); // 进行GET请求
$result = json_decode($response, true);
$order['openid'] = $result['openid']; // 获取到的openid
$data = self::xcx($order, false, false); // 获取支付相关信息(获取非小程序信息)
if (!empty($order['code'])) {
return $data;
}
$url = $config['redirect_url'] ?? $redirectUri;
$url .= '?data=' . json_encode($data, JSON_UNESCAPED_UNICODE);
}
header('Location: '. $url);
die;
}
/**
* [app 获取APP支付需要用到的数据]
* @param [type] $order [订单信息数组]
* @return [type] [description]
*/
public static function app($order=[], $log=false)
{
if(empty($order['order_sn']) || empty($order['total_amount']) || empty($order['body'])){
die("订单数组信息缺失！");
}
$order['type'] = 'app'; // 获取订单类型，用户拼接请求地址
$result = self::unifiedOrder($order, true);
if (!empty($result['prepay_id'])) {
$data = array (
'appId' => self::$config['appid'], // 微信开放平台审核通过的移动应用appid
'timeStamp' => (string)time(),
'nonceStr' => self::get_rand_str(32, 0, 1), // 随机32位字符串
'prepayid' => $result['prepay_id'],
);
$data['paySign'] = self::makeSign($data);
$data['partnerid'] = $config['mchid'];
$data['package'] = 'Sign=WXPay';
return $data; // 数据小程序客户端
} else {
return $log ? $result : false;
}
}
/**
* [h5 微信H5支付]
* @param [type] $order [订单信息数组]
* @return [type] [description]
*/
public static function h5($order=[], $log=false)
{
if(empty($order['order_sn']) || empty($order['total_amount']) || empty($order['body']) || empty($order['type']) || !in_array(strtolower($order['type']), ['ios', 'android', 'wap'])){
die("订单数组信息缺失！");
}
$result = self::unifiedOrder($order);
if (!empty($result['h5_url'])) {
return $result['h5_url']; // 返回链接让用户点击跳转
} else {
return $log ? $result : false;
}
}
/**
* [xcx 获取jssdk需要用到的数据]
* @param [type] $order [订单信息数组]
* @param boolean $log [description]
* @param boolean $type [区分是否是小程序，默认 true]
* @return [type] [description]
*/
public static function xcx($order=[], $log=false, $type=true)
{
if(empty($order['order_sn']) || empty($order['total_amount']) || empty($order['body']) || empty($order['openid'])){
die("订单数组信息缺失！");
}
$order['type'] = 'jsapi'; // 获取订单类型，用户拼接请求地址
$config = self::$config;
$result = self::unifiedOrder($order, $type);
if (!empty($result['prepay_id'])) {
$data = array (
'appId' => $type ? $config['xcxid'] : $config['appid'], // 由微信生成的应用ID
'timeStamp' => (string)time(),
'nonceStr' => self::get_rand_str(32, 0, 1), // 随机32位字符串
'package' => 'prepay_id='.$result['prepay_id'],
);
$data['paySign'] = self::makeSign($data);
$data['signType'] = 'RSA';
return $data; // 数据小程序客户端
} else {
return $log ? $result : false;
}
}
/**
* [scan 微信扫码支付]
* @param [type] $order [订单信息数组]
* @return [type] [description]
*/
public static function scan($order=[], $log=false)
{
if(empty($order['order_sn']) || empty($order['total_amount']) || empty($order['body'])){
die("订单数组信息缺失！");
}
$order['type'] = 'native'; // Native支付
$result = self::unifiedOrder($order);
if (!empty($result['code_url'])) {
return urldecode($result['code_url']); // 返回链接让用户点击跳转
} else {
return $log ? $result : false;
}
}
/**
* [notify 回调验证]
* @return [array] [返回数组格式的notify数据]
*/
public static function notify($server = [], $response = [])
{
$config = self::$config;
$server = $server ?? $_SERVER;
$response = $response ?? file_get_contents('php://input', 'r');
if (empty($response) || empty($server['HTTP_WECHATPAY_SIGNATURE'])) {
return false;
}
$body = [
'timestamp' => $server['HTTP_WECHATPAY_TIMESTAMP'],
'nonce' => $server['HTTP_WECHATPAY_NONCE'],
'data' => $response,
];
// 验证应答签名
$verifySign = self::verifySign($body, trim($server['HTTP_WECHATPAY_SIGNATURE']), trim($server['HTTP_WECHATPAY_SERIAL']));
if (!$verifySign) {
die("签名验证失败！");
}
$result = json_decode($response, true);
if (empty($result) || $result['event_type'] != 'TRANSACTION.SUCCESS' || $result['summary'] != '支付成功') {
return false;
}
// 加密信息
$associatedData = $result['resource']['associated_data'];
$nonceStr = $result['resource']['nonce'];
$ciphertext = $result['resource']['ciphertext'];
$data = $result['resource']['ciphertext'] = self::decryptToString($associatedData, $nonceStr, $ciphertext);
return json_decode($data, true);
}
/**
* [refund 微信支付退款]
* @param [type] $order [订单信息]
* @param [type] $type [是否是小程序]
*/
public static function refund($order)
{
$config = self::$config;
if(empty($order['refund_sn']) || empty($order['refund_amount']) || (empty($order['order_sn']) && empty($order['transaction_id']))){
die("订单数组信息缺失！");
}
$params = array(
'out_refund_no' => (string)$order['refund_sn'], // 商户退款单号
'funds_account' => 'AVAILABLE', // 退款资金来源
'amount' => [
'refund' => $order['refund_amount'],
'currency' => 'CNY',
]
);
if (!empty($order['transaction_id'])) {
$params['transaction_id'] = $order['transaction_id'];
$orderDetail = self::query($order['transaction_id'], true);
} else {
$params['out_trade_no'] = $order['order_sn'];
$orderDetail = self::query($order['order_sn']);
}
$params['amount']['total'] = $orderDetail['amount']['total'];
!empty($order['reason']) && $params['reason'] = $order['reason'];
$url = self::$refundUrl;
$header = self::createAuthorization($url, $params, 'POST');
$response = Http::post($url, json_encode($params, JSON_UNESCAPED_UNICODE), $header);
$result = json_decode($response, true);
return $result;
}
/**
* [queryRefund 查询退款]
* @param [type] $refundSn [退款单号]
* @return [type] [description]
*/
public static function queryRefund($refundSn, $type = false)
{
$url = self::$refundUrl . '/' . $refundSn;
$params = '';
$header = self::createAuthorization($url, $params, 'GET');
$response = Http::get($url, $params, $header);
$result = json_decode($response, true);
return $result;
}
/**
* [success 通知支付状态]
*/
public static function success()
{
$str = ['code'=>'SUCCESS', 'message'=>'成功'];
die(json_encode($str, JSON_UNESCAPED_UNICODE));
}
/**
* [createAuthorization 获取接口授权header头信息]
* @param [type] $url [请求地址]
* @param array $data [请求参数]
* @param string $method [请求方式]
* @return [type] [description]
*/
//生成v3 Authorization
protected static function createAuthorization($url, $data=[], $method='POST'){
$config = self::$config;
//商户号
$mchid = $config['mchid'];
// 证书序列号
if (empty($config['serial_no'])) {
$certFile = @file_get_contents($config['cert_client']);
$certArr = openssl_x509_parse($publicStr);
$serial_no = $certArr['serialNumberHex'];
} else {
$serial_no = $config['serial_no'];
}
// 解析url地址
$url_parts = parse_url($url);
//生成签名
$body = [
'method' => $method,
'url' => ($url_parts['path'] . (!empty($url_parts['query']) ? "?${url_parts['query']}" : "")),
'time' => time(), // 当前时间戳
'nonce' => self::get_rand_str(32, 0, 1), // 随机32位字符串
'data' => (strtolower($method) == 'post' ? json_encode($data, JSON_UNESCAPED_UNICODE) : $data), // POST请求时 需要 转JSON字符串
];
$sign = self::makeSign($body);
//Authorization 类型
$schema = 'WECHATPAY2-SHA256-RSA2048';
//生成token
$token = sprintf('mchid="%s",nonce_str="%s",timestamp="%d",serial_no="%s",signature="%s"', $mchid, $body['nonce'], $body['time'], $serial_no, $sign);
$header = [
'Content-Type:application/json',
'Accept:application/json',
'User-Agent:*/*',
'Authorization: '. $schema . ' ' . $token
];
return $header;
}
/**
* [makeSign 生成签名]
* @param [type] $data [加密数据]
* @return [type] [description]
*/
public static function makeSign($data)
{
$config = self::$config;
if (!in_array('sha256WithRSAEncryption', \openssl_get_md_methods(true))) {
throw new \RuntimeException("当前PHP环境不支持SHA256withRSA");
}
// 拼接生成签名所需的字符串
$message = '';
foreach ($data as $value) {
$message .= $value . "\n";
}
// 商户私钥
$private_key = self::getPrivateKey($config['cert_key']);
// 生成签名
openssl_sign($message, $sign, $private_key, 'sha256WithRSAEncryption');
$sign = base64_encode($sign);
return $sign;
}
/**
* [verifySign 验证签名]
* @param [type] $data [description]
* @param [type] $sign [description]
* @param [type] $serial [description]
* @return [type] [description]
*/
public static function verifySign($data, $sign, $serial)
{
$config = self::$config;
if (!in_array('sha256WithRSAEncryption', \openssl_get_md_methods(true))) {
throw new \RuntimeException("当前PHP环境不支持SHA256withRSA");
}
$sign = \base64_decode($sign);
// 拼接生成签名所需的字符串
$message = '';
foreach ($data as $value) {
$message .= $value . "\n";
}
// 获取证书相关信息
self::certificates($serial);
// 平台公钥
$public_key = self::getPublicKey($config['public_key']); //平台公钥
// 验证签名
$recode = \openssl_verify($message, $sign, $public_key, 'sha256WithRSAEncryption');
return $recode == 1 ? true : false;
}
//获取私钥
public static function getPrivateKey($filepath)
{
return openssl_pkey_get_private(file_get_contents($filepath));
}
//获取公钥
public static function getPublicKey($filepath)
{
return openssl_pkey_get_public(file_get_contents($filepath));
}
/**
* [certificates 获取证书]
* @return [type] [description]
*/
public static function certificates($serial)
{
$config = self::$config;
$publicStr = @file_get_contents($config['public_key']);
if ($publicStr) { // 判断证书是否存在
$openssl = openssl_x509_parse($publicStr);
if ($openssl['serialNumberHex'] == $serial) { // 是否是所需证书
// return self::getPublicKey($config['public_key']); //平台公钥
return '';
}
}
$url = self::$certificatesUrl;
$params = '';
$header = self::createAuthorization($url, $params, 'GET');
$response = Http::get($url, $params, $header);
$result = json_decode($response, true);
if (empty($result['data'])) {
throw new RuntimeException("[" . $result['code'] . "] " . $result['message']);
}
foreach ($result['data'] as $key => $certificate) {
if ($certificate['serial_no'] == $serial) {
$publicKey = self::decryptToString(
$certificate['encrypt_certificate']['associated_data'],
$certificate['encrypt_certificate']['nonce'],
$certificate['encrypt_certificate']['ciphertext']
);
file_put_contents($config['public_key'], $publicKey);
break; // 终止循环
}
// self::$publicKey[$certificate['serial_no']] = $publicKey;
}
// return self::getPublicKey($config['public_key']); //平台公钥
}
/**
* [decryptToString 证书和回调报文解密]
* @param [type] $associatedData [附加数据包（可能为空）]
* @param [type] $nonceStr [加密使用的随机串初始化向量]
* @param [type] $ciphertext [Base64编码后的密文]
* @return [type] [description]
*/
public static function decryptToString($associatedData, $nonceStr, $ciphertext)
{
$config = self::$config;
$ciphertext = base64_decode($ciphertext);
if (strlen($ciphertext) <= self::AUTH_TAG_LENGTH_BYTE) {
return false;
}
// ext-sodium (default installed on >= PHP 7.2)
if (function_exists('\sodium_crypto_aead_aes256gcm_is_available') &&
\sodium_crypto_aead_aes256gcm_is_available()) {
return \sodium_crypto_aead_aes256gcm_decrypt($ciphertext, $associatedData, $nonceStr, $config['key']);
}
// ext-libsodium (need install libsodium-php 1.x via pecl)
if (function_exists('\Sodium\crypto_aead_aes256gcm_is_available') &&
\Sodium\crypto_aead_aes256gcm_is_available()) {
return \Sodium\crypto_aead_aes256gcm_decrypt($ciphertext, $associatedData, $nonceStr, $config['key']);
}
// openssl (PHP >= 7.1 support AEAD)
if (PHP_VERSION_ID >= 70100 && in_array('aes-256-gcm', \openssl_get_cipher_methods())) {
$ctext = substr($ciphertext, 0, -self::AUTH_TAG_LENGTH_BYTE);
$authTag = substr($ciphertext, -self::AUTH_TAG_LENGTH_BYTE);
return \openssl_decrypt($ctext, 'aes-256-gcm', $config['key'], \OPENSSL_RAW_DATA, $nonceStr,
$authTag, $associatedData);
}
throw new \RuntimeException('AEAD_AES_256_GCM需要PHP 7.1以上或者安装libsodium-php');
}
/** fengkui.net
* [get_rand_str 获取随机字符串]
* @param integer $randLength [长度]
* @param integer $addtime [是否加入当前时间戳]
* @param integer $includenumber [是否包含数字]
* @return [type] [description]
*/
public static function get_rand_str($randLength=6, $addtime=0, $includenumber=1)
{
if ($includenumber)
$chars='abcdefghijklmnopqrstuvwxyzABCDEFGHJKLMNPQEST123456789';
$chars='abcdefghijklmnopqrstuvwxyz';
$len = strlen($chars);
$randStr = '';
for ($i=0; $i<$randLength; $i++){
$randStr .= $chars[rand(0, $len-1)];
}
$tokenvalue = $randStr;
$addtime && $tokenvalue = $randStr . time();
return $tokenvalue;
}
/** fengkui.net
* [get_ip 定义一个函数get_ip() 客户端IP]
* @return [type] [description]
*/
public static function get_ip()
{
if (getenv("HTTP_CLIENT_IP"))
$ip = getenv("HTTP_CLIENT_IP");
else if(getenv("HTTP_X_FORWARDED_FOR"))
$ip = getenv("HTTP_X_FORWARDED_FOR");
else if(getenv("REMOTE_ADDR"))
$ip = getenv("REMOTE_ADDR");
else $ip = "Unknow";
if(preg_match('/^((?:(?:25[0-5]|2[0-4]\d|((1\d{2})|([1-9]?\d)))\.){3}(?:25[0-5]|2[0-4]\d|((1\d{2})|([1 -9]?\d))))$/', $ip))
return $ip;
else
return '';
}
} Référence. documents pour cet article :
1, Applet de paiement WeChat (v3) - Code back-end complet PHP
2. Mini programme PHP WeChat WeChat Pay v3
3, WeChat Pay version V3 mini programme de paiement signature php, signature vérification, partage de code de décryptage des données (référence complète de la méthode)
4, Signature de notification de rappel de l'API de paiement WeChat v3 Y a-t-il une démo PHP à vérifier ?
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