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发送现金红包。
需要注意的事项:
1.微信现金红包要求必传证书,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.默认的使用场景是抽奖(即scene_id参数为PRODUCT_2),额度是1-200元,所以测试时的最低金额是1元。如需修改在产品中心->产品大全->现金红包->产品设置中修改
3.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。
4.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
5.错误码参照 :地址
代码如下:
<?php /** * 关于微信现金红包的说明 * 1.微信现金红包要求必传证书,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214行和217行修改 * 2.默认的使用场景是抽奖(即scene_id参数为PRODUCT_2),额度是1-200元,所以测试时的最低金额是1元。如需修改在产品中心->产品大全->现金红包->产品设置中修改 * 3.错误码参照 :https://pay.weixin.qq.com/wiki/doc/api/tools/cash_coupon.php?chapter=13_4&index=3 */ 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(如果给指定用户发送红包,则填写指定用户的openid) $wxPay = new WxpayService($mchid,$appid,$appKey,$apiKey); $openId = $wxPay->GetOpenid(); //获取openid if(!$openId) exit(\'获取openid失败\'); //②、发送红包 $outTradeNo = uniqid(); //你自己的商品订单号 $payAmount = 1; //红包金额,单位:元 $sendName = \'织梦猫\'; //红包发送者名称 $wishing = \'感谢您参加猜灯谜活动,祝您元宵节快乐!\'; //红包祝福语 $act_name=\'猜灯谜抢红包活动\'; //活动名称 $result = $wxPay->createJsBizPackage($openId,$payAmount,$outTradeNo,$sendName,$wishing,$act_name); 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; } /** * 发送红包 * @param string $openid 用户在该公众号下的Openid * @param float $totalFee 红包金额 单位元 * @param string $outTradeNo 订单号 * @param string $orderName 红包发送者名称 * @param string $wishing 祝福语 * @param string $actName 互动名称 * @return string */ public function createJsBizPackage($openid, $totalFee, $outTradeNo, $sendName,$wishing,$actName) { $config = array( \'mch_id\' => $this->mchid, \'appid\' => $this->appid, \'key\' => $this->apiKey, ); $unified = array( \'wxappid\' => $config[\'appid\'], \'send_name\' => $sendName, \'mch_id\' => $config[\'mch_id\'], \'nonce_str\' => self::createNonceStr(), \'re_openid\' => $openid, \'mch_billno\' => $outTradeNo, \'client_ip\' => \'127.0.0.1\', \'total_amount\' => intval($totalFee * 100), //单位 转为分 \'total_num\'=>1, //红包发放总人数 \'wishing\'=>$wishing, //红包祝福语 \'act_name\'=>$actName, //活动名称 \'remark\'=>\'remark\', //备注信息,如为中文注意转为UTF8编码 \'scene_id\'=>\'PRODUCT_2\', //发放红包使用场景,红包金额大于200时必传。https://pay.weixin.qq.com/wiki/doc/api/tools/cash_coupon.php?chapter=13_4&index=3 ); $unified[\'sign\'] = self::getSign($unified, $config[\'key\']); $responseXml = $this->curlPost(\'https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack\', self::arrayToXml($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; } } ?>
github下载地址:weixinPay
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