网上的很多PHP微信支付接入教程都颇为复杂,且需要配置和引入较多的文件,本人通过整理后给出一个单文件版的,希望可以给各位想接入微信支付的带来些许帮助和借鉴意义。 直接运
网上的很多PHP微信支付接入教程都颇为复杂,且需要配置和引入较多的文件,本人通过整理后给出一个单文件版的,希望可以给各位想接入微信支付的带来些许帮助和借鉴意义。
直接运行该文件即可给指定的微信用户转账。
需要注意的事项:
1.微信企业付款到零钱要求必传证书,需要到这里账户中心->账户设置->API安全->下载证书,然后修改代码中的证书路径
2.该文件需放到支付授权目录下,可以在微信支付商户平台->产品中心->开发配置中设置。
3.如提示签名错误可以通过微信支付签名验证工具进行验证:微信公众平台支付接口调试工具
4.错误码参照:参照地址
代码如下:
<?php /** * 关于微信企业付款的说明 * 1.微信企业付款要求必传证书,需要到https://pay.weixin.qq.com 账户中心->账户设置->API安全->下载证书,证书路径在第207行和210行修改 * 2.错误码参照 :https://pay.weixin.qq.com/wiki/doc/api/tools/mch_pay.php?chapter=14_2 */ header('Content-type:text/html; Charset=utf-8'); $mchid = 'xxxxx'; //微信支付商户号 PartnerID 通过微信支付商户资料审核后邮件发送 $appid = 'xxxxx'; //微信支付申请对应的公众号的APPID $appKey = 'xxxxx'; //微信支付申请对应的公众号的APP Key $apiKey = 'xxxxx'; //https://pay.weixin.qq.com 帐户设置-安全设置-API安全-API密钥-设置API密钥 //①、获取当前访问页面的用户openid(如果给指定用户转账,则直接填写指定用户的openid) $wxPay = new WxpayService($mchid,$appid,$appKey,$apiKey); $openId = $wxPay->GetOpenid(); //获取openid if(!$openId) exit('获取openid失败'); //②、付款 $outTradeNo = uniqid(); //订单号 $payAmount = 1; //转账金额,单位:元。转账最小金额为1元 $trueName = '张三'; //收款人真实姓名 $result = $wxPay->createJsBizPackage($openId,$payAmount,$outTradeNo,$trueName); echo 'success'; class WxpayService { protected $mchid; protected $appid; protected $appKey; protected $apiKey; public $data = null; public function __construct($mchid, $appid, $appKey,$key) { $this->mchid = $mchid; $this->appid = $appid; $this->appKey = $appKey; $this->apiKey = $key; } /** * 通过跳转获取用户的openid,跳转流程如下: * 1、设置自己需要调回的url及其其他参数,跳转到微信服务器https://open.weixin.qq.com/connect/oauth2/authorize * 2、微信服务处理完成之后会跳转回用户redirect_uri地址,此时会带上一些参数,如:code * @return 用户的openid */ public function GetOpenid() { //通过code获得openid if (!isset($_GET['code'])){ //触发微信返回code码 $scheme = $_SERVER['HTTPS']=='on' ? 'https://' : 'http://'; $baseUrl = urlencode($scheme.$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'].$_SERVER['QUERY_STRING']); $url = $this->__CreateOauthUrlForCode($baseUrl); Header("Location: $url"); exit(); } else { //获取code码,以获取openid $code = $_GET['code']; $openid = $this->getOpenidFromMp($code); return $openid; } } /** * 通过code从工作平台获取openid机器access_token * @param string $code 微信跳转回来带上的code * @return openid */ public function GetOpenidFromMp($code) { $url = $this->__CreateOauthUrlForOpenid($code); $res = self::curlGet($url); //取出openid $data = json_decode($res,true); $this->data = $data; $openid = $data['openid']; return $openid; } /** * 构造获取open和access_toke的url地址 * @param string $code,微信跳转带回的code * @return 请求的url */ private function __CreateOauthUrlForOpenid($code) { $urlObj["appid"] = $this->appid; $urlObj["secret"] = $this->appKey; $urlObj["code"] = $code; $urlObj["grant_type"] = "authorization_code"; $bizString = $this->ToUrlParams($urlObj); return "https://api.weixin.qq.com/sns/oauth2/access_token?".$bizString; } /** * 构造获取code的url连接 * @param string $redirectUrl 微信服务器回跳的url,需要url编码 * @return 返回构造好的url */ private function __CreateOauthUrlForCode($redirectUrl) { $urlObj["appid"] = $this->appid; $urlObj["redirect_uri"] = "$redirectUrl"; $urlObj["response_type"] = "code"; $urlObj["scope"] = "snsapi_base"; $urlObj["state"] = "STATE"."#wechat_redirect"; $bizString = $this->ToUrlParams($urlObj); return "https://open.weixin.qq.com/connect/oauth2/authorize?".$bizString; } /** * 拼接签名字符串 * @param array $urlObj * @return 返回已经拼接好的字符串 */ private function ToUrlParams($urlObj) { $buff = ""; foreach ($urlObj as $k => $v) { if($k != "sign") $buff .= $k . "=" . $v . "&"; } $buff = trim($buff, "&"); return $buff; } /** * 企业付款 * @param string $openid 调用【网页授权获取用户信息】接口获取到用户在该公众号下的Openid * @param float $totalFee 收款总费用 单位元 * @param string $outTradeNo 唯一的订单号 * @param string $orderName 订单名称 * @param string $notifyUrl 支付结果通知url 不要有问号 * @param string $timestamp 支付时间 * @return string */ public function createJsBizPackage($openid, $totalFee, $outTradeNo,$trueName) { $config = array( 'mch_id' => $this->mchid, 'appid' => $this->appid, 'key' => $this->apiKey, ); $unified = array( 'mch_appid' => $config['appid'], 'mchid' => $config['mch_id'], 'nonce_str' => self::createNonceStr(), 'openid' => $openid, 'check_name'=>'FORCE_CHECK', //校验用户姓名选项。NO_CHECK:不校验真实姓名,FORCE_CHECK:强校验真实姓名 're_user_name'=>$trueName, //收款用户真实姓名(不支持给非实名用户打款) 'partner_trade_no' => $outTradeNo, 'spbill_create_ip' => '127.0.0.1', 'amount' => intval($totalFee * 100), //单位 转为分 'desc'=>'付款', //企业付款操作说明信息 ); $unified['sign'] = self::getSign($unified, $config['key']); $responseXml = $this->curlPost('https://api.mch.weixin.qq.com/mmpaymkttransfers/promotion/transfers', self::arrayToXml($unified)); $unifiedOrder = simplexml_load_string($responseXml, 'SimpleXMLElement', LIBXML_NOCDATA); if ($unifiedOrder === false) { die('parse xml error'); } if ($unifiedOrder->return_code != 'SUCCESS') { die($unifiedOrder->return_msg); } if ($unifiedOrder->result_code != 'SUCCESS') { die($unifiedOrder->err_code); } return true; } public static function curlGet($url = '', $options = array()) { $ch = curl_init($url); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_TIMEOUT, 30); if (!empty($options)) { curl_setopt_array($ch, $options); } //https请求 不验证证书和host curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false); $data = curl_exec($ch); curl_close($ch); return $data; } public function curlPost($url = '', $postData = '', $options = array()) { if (is_array($postData)) { $postData = http_build_query($postData); } $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_POST, 1); curl_setopt($ch, CURLOPT_POSTFIELDS, $postData); curl_setopt($ch, CURLOPT_TIMEOUT, 30); //设置cURL允许执行的最长秒数 if (!empty($options)) { curl_setopt_array($ch, $options); } //https请求 不验证证书和host curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false); //第一种方法,cert 与 key 分别属于两个.pem文件 //默认格式为PEM,可以注释 curl_setopt($ch,CURLOPT_SSLCERTTYPE,'PEM'); curl_setopt($ch,CURLOPT_SSLCERT,getcwd().'/cert/apiclient_cert.pem'); //默认格式为PEM,可以注释 curl_setopt($ch,CURLOPT_SSLKEYTYPE,'PEM'); curl_setopt($ch,CURLOPT_SSLKEY,getcwd().'/cert/apiclient_key.pem'); //第二种方式,两个文件合成一个.pem文件 // curl_setopt($ch,CURLOPT_SSLCERT,getcwd().'/all.pem'); $data = curl_exec($ch); curl_close($ch); return $data; } public static function createNonceStr($length = 16) { $chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'; $str = ''; for ($i = 0; $i < $length; $i++) { $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1); } return $str; } public static function arrayToXml($arr) { $xml = "<xml>"; foreach ($arr as $key => $val) { if (is_numeric($val)) { $xml .= "<" . $key . ">" . $val . "</" . $key . ">"; } else $xml .= "<" . $key . "><![CDATA[" . $val . "]]></" . $key . ">"; } $xml .= "</xml>"; return $xml; } public static function getSign($params, $key) { ksort($params, SORT_STRING); $unSignParaString = self::formatQueryParaMap($params, false); $signStr = strtoupper(md5($unSignParaString . "&key=" . $key)); return $signStr; } protected static function formatQueryParaMap($paraMap, $urlEncode = false) { $buff = ""; ksort($paraMap); foreach ($paraMap as $k => $v) { if (null != $v && "null" != $v) { if ($urlEncode) { $v = urlencode($v); } $buff .= $k . "=" . $v . "&"; } } $reqPar = ''; if (strlen($buff) > 0) { $reqPar = substr($buff, 0, strlen($buff) - 1); } return $reqPar; } } ?>
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