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php实现微信发红包 php实现微信公众平台发红包功能

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代码

<?php
/**
 * 微信红包的类 
 * @Author snmoney#gmail.com 
 * @copyright 2015 
 * @version 2.0

 * *微信红包还有部分可选的参数,如分享预设值等将在后续版本补充上相关功能。
 * 对应官方接口更新,追加了分裂红包的玩法,详情参考官方文档。
 */

CLASS WXHongBao {

  private $mch_id = "********";               //商户ID写死
  private $wxappid = "********";          //微信公众号,写死
  private $client_ip = ""; //"127.0.0.1"; //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 = "";    //pay的秘钥值
  private $total_num = 1;                   //发放人数。固定值1,不可修改
  private $nick_name = "微信公众号红包";           //红包商户名称
  private $send_name = "微信公众号红包";          //红包派发者名称
  private $wishing = "欢迎再次参与";      //
  private $act_name = "";     //活动名称
  private $remark = "";
  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";
  private $apiclient_ca;// = 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 引入需要的文件
    $this->wxhb_inited = false; 
    $this->apiclient_cert = getcwd() . "/zzz1/apiclient_cert.pem";
    $this->apiclient_key = getcwd() . "/zzz1/apiclient_key.pem";
    $this->apiclient_ca = getcwd() . "/zzz1/rootca.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::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;
  }

  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){
    $this->total_amount = (int)$price;
    $this->min_value = (int)$price;
    $this->max_value = (int)$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;
  }


  /**
   * 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();

    //echo $xml;

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

    curl_setopt($ch,CURLOPT_CAINFO,$this->appclient_ca);

    /* 
    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);
     //die(print_r($data));
    if($data){
      curl_close($ch);
      $rsxml = simplexml_load_string($data);
      if($rsxml->return_code == 'SUCCESS' ){
        return true;
      }else{
        $this->error = json_encode($rsxml->return_msg);
        return false;  
      }
    }else{ 
      $this->error = curl_errno($ch);

      curl_close($ch);
      return false;
    }

  }

  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;//

    //裂变红包 用不到就注释掉
     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;
    //可以用下面方法查看
    // file_put_contents("11sign.txt",$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>";
   $xml = "<xml>
         <act_name><![CDATA[".$this->act_name."]]></act_name> 
         <client_ip><![CDATA[".$this->client_ip."]]></client_ip> 
         <max_value>".$this->max_value."</max_value> 
          <mch_billno>".$this->mch_billno."</mch_billno> 
          <mch_id>".$this->mch_id."</mch_id>
          <min_value>".$this->min_value."</min_value> 
          <nick_name><![CDATA[".$this->nick_name."]]></nick_name> 
          <nonce_str>".$this->nonce_str."</nonce_str>
          <re_openid>".$this->re_openid."</re_openid> 
          <remark><![CDATA[".$this->remark."]]></remark>
           <send_name><![CDATA[".$this->send_name."]]></send_name>
           <total_amount>".$this->total_amount."</total_amount> 
           <total_num>".$this->total_num."</total_num>
           <wishing><![CDATA[".$this->wishing."]]></wishing>
           <wxappid>".$this->wxappid."</wxappid>
           <sign>".$this->sign."</sign> 
        </xml>
           ";

      // <nick_name><![CDATA[".$this->nick_name."]]></nick_name> 



      // <min_value>".$this->min_value."</min_value> 
      // <max_value>".$this->max_value."</max_value> 

    // $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;
  }
}
/**
*1.上边是红包类,需要用的时候直接引入红包类。
*2.//实例化红包类
*  $wxhongbao=new \WXHongBao();
*3. //需要发放的openid 金额 openid 根据微信提供的接口获取,金额根据自己需求
* $wxhongbao->newhb($user_openid, $pay_money*100);
*$wxhongbao->setActName("根据自己需求设置");
* $wxhongbao->setWishing("根据自己需求设置");
*$wxhongbao->setRemark("根据自己需求设置");
*参数设置之后发放红包
*$wxhongbao->send();
**/
?>

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