PHP开发的微信现金红包功能示例
来源：php教程
作者：
2020-06-21
本文实例讲述了php开发的微信现金红包功能。分享给大家供大家参考，具体如下：
微信商家后台-现金红包开发
sdk
<?phpclass wxPay { //配置参数信息 const SHANGHUHAO = "1430998xxx";//商户号 const PARTNERKEY = "leFyTOXWzUEXxfp47WOu5d9xxxxxx"; //api，商户后台 //核心支付函数,参数：请求地址和参数 function pay($url,$obj) { $obj['nonce_str'] = $this->create_noncestr(); //创建随机字符串 $stringA = $this->create_qianming($obj,false); //创建签名 $stringSignTemp = $stringA."&key=leFyTOXWzUEXxfp47WOu5xxxxxx"; //签名后加api $sign = strtoupper(md5($stringSignTemp)); //签名加密并大写 $obj['sign'] = $sign; //将签名传入数组 $postXml = $this->arrayToXml($obj); //将参数转为xml格式 var_dump($postXml); $responseXml = $this->curl_post_ssl($url,$postXml); //提交请求 var_dump($responseXml); return $responseXml; } //生成签名,参数：生成签名的参数和是否编码 function create_qianming($arr,$urlencode) { $buff = ""; ksort($arr); //对传进来的数组参数里面的内容按照字母顺序排序，a在前面，z在最后（字典序） foreach ($arr as $k=>$v) { if(null!=$v && "null" != $v && "sign" != $k) { //签名不要转码 if ($urlencode) { $v = urlencode($v); } $buff.=$k."=".$v."&"; } } if (strlen($buff)>0) { $reqPar = substr($buff,0,strlen($buff)-1); //去掉末尾符号“&” } return $reqPar; } //生成随机字符串，默认32位 function create_noncestr($length=32) { //创建随机字符 $chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"; $str = ""; for($i=0;$i<$length;$i++) { $str.=substr($chars, mt_rand(0,strlen($chars)-1),1); } return $str; } //数组转xml function arrayToXml($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 $xml; } //post请求网站，需要证书 function curl_post_ssl($url, $vars, $second=30,$aHeader=array()) { $ch = curl_init(); //超时时间 curl_setopt($ch,CURLOPT_TIMEOUT,$second); curl_setopt($ch,CURLOPT_RETURNTRANSFER, 1); //这里设置代理，如果有的话 curl_setopt($ch,CURLOPT_URL,$url); curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false); curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,false); //cert 与 key 分别属于两个.pem文件 //请确保您的libcurl版本是否支持双向认证，版本高于7.20.1 curl_setopt($ch,CURLOPT_SSLCERT,dirname(__FILE__).DIRECTORY_SEPARATOR. 'zhengshu'.DIRECTORY_SEPARATOR.'apiclient_cert.pem'); curl_setopt($ch,CURLOPT_SSLKEY,dirname(__FILE__).DIRECTORY_SEPARATOR. 'zhengshu'.DIRECTORY_SEPARATOR.'apiclient_key.pem'); curl_setopt($ch,CURLOPT_CAINFO,dirname(__FILE__).DIRECTORY_SEPARATOR. 'zhengshu'.DIRECTORY_SEPARATOR.'rootca.pem'); if( count($aHeader) >= 1 ){ curl_setopt($ch, CURLOPT_HTTPHEADER, $aHeader); } curl_setopt($ch,CURLOPT_POST, 1); curl_setopt($ch,CURLOPT_POSTFIELDS,$vars); $data = curl_exec($ch); if($data){ curl_close($ch); return $data; } else { $error = curl_errno($ch); echo "call faild, errorCode:$error/n"; curl_close($ch); return false; } }}
证书文件：
请在微信商户后台-API安全下载，php请使用php的证书文件
微信红包调用测试文件：
<?phprequire 'wxpay.class.php';<br><br>//数组参数$money = 100; //最低1元，单位分$sender = "晨缘房产";$obj2 = array();$obj2['wxappid'] = ""; //appid$obj2['mch_id'] = ""; //商户id$obj2['mch_billno'] = "商户id".date('YmdHis').rand(1000,9999); //组合成28位，根据官方开发文档，可以自行设置$obj2['client_ip'] = $_SERVER['REMOTE_ADDR'];$obj2['re_openid'] = "oUxO6v26wdyMHThD9kfDW6NB_xbE"; //接收红包openid$obj2['total_amount'] = $money;$obj2['min_value'] = $money;$obj2['max_value'] = $money;$obj2['total_num'] = 1;$obj2['nick_name'] = $sender;$obj2['send_name'] = $sender;$obj2['wishing'] = "恭喜发财";$obj2['act_name'] = $sender."红包";$obj2['remark'] = $sender."红包";$url = "https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack";$wxpay = new wxPay();$res = $wxpay->pay($url, $obj2);var_dump($res);