php实现微信发红包

只看该作者 · 发表于 2018-2-14 05:41:12

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：
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)){
   $this->error = "金额参数错误";
   return;
}elseif($amounterror = "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_"";
$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 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($"",$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;
$this->share_$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_) $param["share_"] = $this->share_;
if($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(){

$xml = "
   ".$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."
   ";


if($this->share_content) $xml .= "share_content."]]>
";
if($this->share_) $xml .= "share_"]]>
";
if($this->share_url) $xml .= "share_url."]]>
";
if($this->amt_type) $xml .= "amt_type."]]>
";

$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)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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