以前一直使用v2，格式是xml格式，但是微信最新推出v3之后，只有以前的老用户才能用v2，而新用户只能用v3。阅读了一下文档，发现v3采用的是json格式和以前的xml大有不同。官方的demo又不清不白，用的是guzzle（关键我不会啊，研究又要太久时间，项目赶，没办法只有自己编写一个demo了，希望可以帮助大家）
首先创建一个文件和类，如WxPayv3.php，请勿直接复制，因为可以看到这个类继承了另一个类（别担心，父类只是一些配置参数而已，可以自己去创建一个，我就不写出来了）
<?php namespace wx; use wxWxExtend; class WxPayv3 extends WxExtend{ /** * # +======================================================================== * # | - @name 执行 * # | - @author cq <just_leaf@foxmail.com> * # | - @copyright zmtek 2021-01-20 * # +======================================================================== */ public function execute($url,$body = null,$http_method = 'POST') { # 转化大写 $http_method = strtoupper($http_method); if($http_method == 'POST') { $body = json_encode($body); }else{ $url = $url . '?' . http_build_query($body); $body = null; } # 分割符号 $sign = $this -> getV3Sign($url,$http_method,$body); $header[] = 'User-Agent:Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.108 Safari/537.36'; $header[] = 'Accept: application/json'; $header[] = 'Content-Type: application/json;'; $header[] = 'Authorization: WECHATPAY2-SHA256-RSA2048 '.$sign; $exc = $this -> Curl($url,$body,$http_method,$header); return $exc; } /** * # +======================================================================== * # | - @name 请求 * # | - @author cq <just_leaf@foxmail.com> * # | - @copyright zmtek 2021-01-20 * # +======================================================================== */ public function Curl($url, $data, $http_method,$header = array(), $timeout = 30) { $opts = array( CURLOPT_TIMEOUT => 30, CURLOPT_RETURNTRANSFER => 1, CURLOPT_SSL_VERIFYPEER => false, CURLOPT_SSL_VERIFYHOST => false, CURLOPT_HTTPHEADER => $header, CURLOPT_URL => $url, CURLOPT_HEADER => 1 , ); # 根据请求类型设置特定参数 if($http_method == 'POST') { # 判断是否传输文件 $opts[CURLOPT_POST] = 1; $opts[CURLOPT_POSTFIELDS] = $data; } # 初始化并执行curl请求 $ch = curl_init(); curl_setopt_array($ch, $opts); $data = curl_exec($ch); $error = curl_error($ch); $httpCode = curl_getinfo($ch,CURLINFO_HTTP_CODE); curl_close($ch); if($error) throw new Exception('请求发生错误：' . $error); list($headers, $body) = explode(" ", $data, 2); $result['data'] = $body; $result['httpcode'] = $httpCode; $result['headers'] = explode(" ", $headers); return $result; } /** * # +======================================================================== * # | - @name 签名 * # | - @author cq <just_leaf@foxmail.com> * # | - @copyright zmtek 2021-01-20 * # +======================================================================== */ public function getV3Sign($url,$http_method,$body) { # 商户号 $merchant_id = $this -> MCHID; # 随机字符串 $nonce = strtoupper($this -> getNoncestr()); # 商户序列号 $serial_no = $this -> merchantSerialNumber; # 时间搓 $timestamp = time(); # url $url_parts = parse_url($url); # 获取绝对路径 $canonical_url = ($url_parts['path'] . (!empty($url_parts['query']) ? "?${url_parts['query']}" : "")); # 密钥key $private_key = $this -> getPrivateKey($this -> SSLKEY_PATH); # 拼接参数 $message = $http_method." ". $canonical_url." ". $timestamp." ". $nonce." ". $body." "; # 获取签名 openssl_sign($message, $raw_sign, $private_key, 'sha256WithRSAEncryption'); $sign = base64_encode($raw_sign); $token = sprintf('mchid="%s",nonce_str="%s",timestamp="%d",serial_no="%s",signature="%s"', $merchant_id, $nonce, $timestamp, $serial_no, $sign); return $token; } /** * # +======================================================================== * # | - @name 获取私钥 * # | - @author cq <just_leaf@foxmail.com> * # | - @copyright zmtek 2019-12-26 * # +======================================================================== */ public function getPrivateKey($filepath) { return openssl_get_privatekey(file_get_contents($filepath)); } /** * # +======================================================================== * # | - @name 获取随机数 * # | - @author cq <just_leaf@foxmail.com> * # | - @copyright zmtek 2021-01-20 * # +======================================================================== */ public function getNoncestr($length = 32) { $chars = "abcdefghijklmnopqrstuvwxyz0123456789"; $str =""; for ( $i = 0; $i < $length; $i++ ) { $str.= substr($chars, mt_rand(0, strlen($chars)-1), 1); } return $str; } }
然后再new再调用就完事了
/** * # +======================================================================== * # | - @name 查询用户 * # | - @author cq <just_leaf@foxmail.com> * # | - @copyright zmtek 2020-11-24 * # +------------------------------------------------------------------------ * # | - 1.msg * # +======================================================================== */ public function permissions_openid(WxPayv3 $WxPayv3,WxExtend $WxExtend) { $url = 'https://api.mch.weixin.qq.com/v3/payscore/permissions/openid/xxxx'; $authorization_code = $WxPayv3 -> getNoncestr(); $data = array( 'appid' => $WxExtend -> appletappid , 'service_id' => $WxExtend -> service_id, ); $result = $WxPayv3 -> execute($url,$data,'GET'); pf($result); // $data = json_decode($result['data'],true); // return $this -> success($data); }
好，我们来看调用结果
啊呀，好家伙，是不是我这个方法有问题呢？结果赶紧看下官方文档，原来是微信那边挂了。不信？看下图
好啦，之后就可以愉快的调用任何接口了。
如果你还不会怎么办，有大招，关注下方公众号，提问即可。一般回复时间一天左右
