php实现微信发红包_PHP教程

导读：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：

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：

php实现微信发红包

<?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";



    }

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