php实现微信公众平台发红包功能

本文实例为大家分享了php微信公众平台给用户发红包的具体代码，供大家参考，具体内容如下

直接上代码：

代码

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();
  }
  
  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 = "";
  }

  
  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;
  }

  
  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;
  }


  
  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);

        
    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));

  }

  
  public function genXMLParam(){
    // $xml = "


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

      // nick_name."]]> 



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

    // $xml .="";

    return $xml;
  }

  
  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;
  }
}

?>

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