php实现微信发红包

5年以前  |  阅读数:1077 次  |  编程语言:PHP 

本文实例讲述了php实现的微信红包算法。分享给大家供大家参考。具体如下:

具体代码:


    <?php
    /**
     * 微信红包的类 
     * 
     */

    CLASS WXHongBao {

      private $mch_id = "111111";//商户ID写死
      private $wxappid = "22222222";//微信公众号,写死
      private $client_ip = "119.29.80.114"; //调用红包接口的主机的IP,服务端IP,写死,即脚本文件所在的IP
      private $apikey = "33333333";//pay的秘钥值
      private $total_num = 1;//发放人数。固定值1,不可修改  
      private $nick_name = "微信产品中心公众号"; //红包商户名称
      private $send_name = "微信产品中心公众号";//红包派发者名称
      private $wishing = "祝福语"; //  
      private $act_name = "红包活动"; //活动名称
      private $remark = "活动备注";
      private $nonce_str = "";
      private $mch_billno = "";
      private $re_openid = "";//接收方的openID  
      private $total_amount = 1 ;//红包金额,单位 分
      private $min_value = 1;//最小金额
      private $max_value = 1; //根据接口要求,上述3值必须一致       
      private $sign = ""; //签名在send时生成  
      private $amt_type; //分裂红包参数,在sendgroup中进行定义,是常量 ALL_RAND 

      //证书,在构造函数中定义,注意!
      private $apiclient_cert; //= getcwd()."/apiclient_cert.pem";
      private $apiclient_key;// = getcwd()."/apiclient_key.pem";

      //分享参数
      private $isShare = false; //有用?似乎是无用参数,全部都不是必选和互相依赖的参数
      private $share_content = ""; 
      private $share_url ="";
      private $share_imgurl = "";

      private $wxhb_inited;

      private $api_hb_group = "https://api.mch.weixin.qq.com/mmpaymkttransfers/sendgroupredpack";//裂变红包
      private $api_hb_single = "https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack";

      private $error = "ok"; //init



      /**
       * WXHongBao::__construct()
       * 步骤
       * new(openid,amount)
       * setnickname
       * setsend_name
       * setwishing
       * setact_name
       * setremark
       * send()
       * @return void
       */
      function __construct(){
        //好像没有什么需要构造函数做的
        $this->wxhb_inited = false; 
        $this->apiclient_cert = getcwd()."/apiclient_cert.pem";
        $this->apiclient_key = getcwd()."/apiclient_key.pem";
      }

      public function err(){
        return $this->error;
      } 
      public function error(){
        return $this->err();
      }
      /**
       * WXHongBao::newhb()
       * 构造新红包 
       * @param mixed $toOpenId
       * @param mixed $amount 金额分
       * @return void
       */
      public function newhb($toOpenId,$amount){

        if(!is_numeric($amount)){
          $this->error = "金额参数错误";
          return;
        }elseif($amount<100){
          $this->error = "金额太小";
          return;
        }elseif($amount>20000){
          $this->error = "金额太大";
          return;
        }

        $this->gen_nonce_str();//构造随机字串
        $this->gen_mch_billno();//构造订单号
        $this->setOpenId($toOpenId);
        $this->setAmount($amount);
        $this->wxhb_inited = true; //标记微信红包已经初始化完毕可以发送

        //每次new 都要将分享的内容给清空掉,否则会出现残余被引用
        $this->share_content= "";
        $this->share_imgurl = "";
        $this->share_url = "";
      }

      /**
       * WXHongBao::send()
       * 发出红包
       * 构造签名
       * 注意第二参数,单发时不要改动!
       * @return boolean $success
       */              
      public function send($url = "https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack",$total_num = 1){

        if(!$this->wxhb_inited){
          $this->error .= "(红包未准备好)";
          return false; //未初始化完成
        }

        $this->total_num = $total_num;

        $this->gen_Sign(); //生成签名

        //构造提交的数据    
        $xml = $this->genXMLParam();


        //debug
        file_put_contents("hbxml.txt",$xml);

        //提交xml,curl
        //$url = "https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack";
        $ch = curl_init();    
        curl_setopt($ch,CURLOPT_TIMEOUT,10);
        curl_setopt($ch,CURLOPT_RETURNTRANSFER, 1);    
        curl_setopt($ch,CURLOPT_URL,$url);
        curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);
        curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,false);

        curl_setopt($ch,CURLOPT_SSLCERTTYPE,'PEM');
        curl_setopt($ch,CURLOPT_SSLCERT,$this->apiclient_cert);    
        curl_setopt($ch,CURLOPT_SSLKEYTYPE,'PEM');
        curl_setopt($ch,CURLOPT_SSLKEY,$this->apiclient_key);

        /* 
        if( count($aHeader) >= 1 ){
          curl_setopt($ch, CURLOPT_HTTPHEADER, $aHeader);
        }
        */    
        curl_setopt($ch,CURLOPT_POST, 1);
        curl_setopt($ch,CURLOPT_POSTFIELDS,$xml);
        $data = curl_exec($ch);
        if($data){
          curl_close($ch);  
          $rsxml = simplexml_load_string($data);
          if($rsxml->return_code == 'SUCCESS' ){
            return true;
          }else{
            $this->error = $rsxml->return_msg;
            return false;  
          }

        }else{ 
          $this->error = curl_errno($ch);

          curl_close($ch);
          return false;
        }

      }

      /**
       * WXHongBao::sendGroup()
       * 发送裂变红包,参数为裂变数量
       * @param integer $num 3-20
       * @return
       */
      public function sendGroup($num=3){
        $this->amt_type = "ALL_RAND";//$amt; 固定值。发送裂变红包组文档指定参数,随机
        return $this->send($this->api_hb_group,$num);
      }

      public function getApiSingle(){
        return $this->api_hb_single;
      }

      public function getApiGroup(){
        return $this->api_hb_group;
      }

      public function setNickName($nick){
        $this->nick_name = $nick;
      }

      public function setSendName($name){
        $this->send_name = $name;
      }

      public function setWishing($wishing){
        $this->wishing = $wishing;
      }

      /**
       * WXHongBao::setActName()
       * 活动名称 
       * @param mixed $act
       * @return void
       */
      public function setActName($act){
        $this->act_name = $act;
      }

      public function setRemark($remark){
        $this->remark = $remark;
      }

      public function setOpenId($openid){
        $this->re_openid = $openid;
      }

      /**
       * WXHongBao::setAmount()
       * 设置红包金额
       * 文档有两处冲突描述 
       * 一处指金额 >=1 (分钱)
       * 另一处指金额 >=100 < 20000 [1-200元]
       * 有待测试验证!
       * @param mixed $price 单位 分
       * @return void
       */
      public function setAmount($price){
        $this->total_amount = $price;
        $this->min_value = $price;
        $this->max_value = $price;
      }
      //以下方法,为设置分裂红包时使用
      public function setHBminmax($min,$max){
        $this->min_value = $min;
        $this->max_value = $max;
      }


      public function setShare($img="",$url="",$content=""){

        //https://mmbiz.qlogo.cn/mmbiz/MS1jaDO92Ep4qNo9eV0rnItptyBrzUhJqT8oxSsCofdxibnNWMJiabaqgLPkDaEJmia6fqTXAXulKBa9NLfxYMwYA/0?wx_fmt=png
        //http://mp.weixin.qq.com/s?__biz=MzA5Njg4NTk3MA==&mid;=206257621&idx;=1&sn;=56241da30e384e40771065051e4aa6a8#rd
        $this->share_content = $content;
        $this->share_imgurl = $img;
        $this->share_url = $url;
      }

      private function gen_nonce_str(){
        $this->nonce_str = strtoupper(md5(mt_rand().time())); //确保不重复而已
      }

      private function gen_Sign(){
        unset($param); 
        //其实应该用key重排一次 right?
        $param["act_name"]=$this->act_name;//

        if($this->total_num==1){ //这些是裂变红包用不上的参数,会导致签名错误
          $param["client_ip"]=$this->client_ip;
          $param["max_value"]=$this->max_value;
          $param["min_value"]=$this->min_value;
          $param["nick_name"]=$this->nick_name;
        }

        $param["mch_billno"] = $this->mch_billno;  //   
        $param["mch_id"]=$this->mch_id;//    
        $param["nonce_str"]=$this->nonce_str;  //  
        $param["re_openid"]=$this->re_openid;//
        $param["remark"]=$this->remark;    //
        $param["send_name"]=$this->send_name;//
        $param["total_amount"]=$this->total_amount;//
        $param["total_num"]=$this->total_num;    //
        $param["wishing"]=$this->wishing;//
        $param["wxappid"]=$this->wxappid;//

        if($this->share_content) $param["share_content"] = $this->share_content;
        if($this->share_imgurl) $param["share_imgurl"] = $this->share_imgurl;
        if($this->share_url) $param["share_url"] = $this->share_url;

        if($this->amt_type) $param["amt_type"] = $this->amt_type; //

        ksort($param); //按照键名排序...艹,上面排了我好久

        //$sign_raw = http_build_query($param)."&key;=".$this->apikey;
        $sign_raw = "";
        foreach($param as $k => $v){
          $sign_raw .= $k."=".$v."&";
        }
        $sign_raw .= "key=".$this->apikey;

        //file_put_contents("sign.raw",$sign_raw);//debug
        $this->sign = strtoupper(md5($sign_raw));
      }

      /**
       * WXHongBao::genXMLParam()
       * 生成post的参数xml数据包
       * 注意生成之前各项值要生成,尤其是Sign
       * @return $xml
       */
      public function genXMLParam(){

        $xml = "<xml>
          <sign>".$this->sign."</sign> 
          <mch_billno>".$this->mch_billno."</mch_billno> 
          <mch_id>".$this->mch_id."</mch_id> 
          <wxappid>".$this->wxappid."</wxappid> 
          <nick_name><![CDATA[".$this->nick_name."]]></nick_name> 
          <send_name><![CDATA[".$this->send_name."]]></send_name> 
          <re_openid>".$this->re_openid."</re_openid> 
          <total_amount>".$this->total_amount."</total_amount> 
          <min_value>".$this->min_value."</min_value> 
          <max_value>".$this->max_value."</max_value> 
          <total_num>".$this->total_num."</total_num> 
          <wishing><![CDATA[".$this->wishing."]]></wishing> 
          <client_ip><![CDATA[".$this->client_ip."]]></client_ip> 
          <act_name><![CDATA[".$this->act_name."]]></act_name> 
          <remark><![CDATA[".$this->remark."]]></remark>       
          <nonce_str>".$this->nonce_str."</nonce_str>
          "; 


        if($this->share_content) $xml .= "<share_content><![CDATA[".$this->share_content."]]></share_content>
        ";
        if($this->share_imgurl) $xml .= "<share_imgurl><![CDATA[".$this->share_imgurl."]]></share_imgurl>
        ";
        if($this->share_url) $xml .= "<share_url><![CDATA[".$this->share_url."]]></share_url>
        ";
        if($this->amt_type) $xml .= "<amt_type><![CDATA[".$this->amt_type."]]></amt_type>
        ";

        $xml .="</xml>";

        return $xml;
      }

      /**
       * WXHongBao::gen_mch_billno()
       * 商户订单号(每个订单号必须唯一) 
        组成: mch_id+yyyymmdd+10位一天内不能重复的数字。 
        接口根据商户订单号支持重入, 如出现超时可再调用。 
       * @return void
       */
      private function gen_mch_billno(){
        //生成一个长度10,的阿拉伯数字随机字符串
        $rnd_num = array('0','1','2','3','4','5','6','7','8','9');
        $rndstr = "";
        while(strlen($rndstr)<10){
          $rndstr .= $rnd_num[array_rand($rnd_num)];  
        }

        $this->mch_billno = $this->mch_id.date("Ymd").$rndstr;
      }
    }    
    ?>

    然后实例化class.

       $toOpenId = 'asdasdasd'; //接收红包的用户的微信OpenId
        $hb = new WXHongBao();

        $hb->newhb($toOpenId,1000); //新建一个10元的红包,第二参数单位是 分,注意取值范围 1-200元
        //以下若干项可选操作,不指定则使用class脚本顶部的预设值
         $hb->setNickName("土豪有限公司");
         $hb->setSendName("土豪");
         $hb->setWishing("恭喜发财");
         $hb->setActName("发钱活动");
         $hb->setRemark("任性一把");

        //发送红包

        if(!$hb->send()){ //发送错误

          echo $hb->err();

        }else{

          echo "红包发送成功";

        }

希望本文所述对大家的php程序设计有所帮助。

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