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：

PHP;">

*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)){
  $this->error = "金额参数<a href="https://www.jb51.cc/tag/cuowu/" target="_blank" class="keywords">错误</a>";
  return;
}elseif($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<a href="https://www.jb51.cc/tag/suiji/" target="_blank" class="keywords">随机</a>字串
$this->gen_mch_billno();//构造订单号
$this->setOpenId($toOpenId);
$this->setAmount($amount);
$this->wxhb_inited = true; //<a href="https://www.jb51.cc/tag/biaoji/" target="_blank" class="keywords">标记</a>微信红包已经初始化完毕可以发送

//每次new 都要将<a href="https://www.jb51.cc/tag/fenxiang/" target="_blank" class="keywords">分享</a>的<a href="https://www.jb51.cc/tag/neirong/" target="_blank" class="keywords">内容</a>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.q logo.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(); //<a href="https://www.jb51.cc/tag/shengcheng/" target="_blank" class="keywords">生成</a>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,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<a href="https://www.jb51.cc/tag/cuowu/" target="_blank" class="keywords">错误</a>
  $param["client_ip"]=$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<a href="https://www.jb51.cc/tag/fangfa/" target="_blank" class="keywords">方法</a>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 = "

//   <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[".$this->remark."]]>@H_<a href="https://www.jb51.cc/tag/301/" target="_blank" class="keywords">301</a>_45@       
//   <nonce_str>".$this->nonce_str."</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."]]>@H_301_45@ send_name."]]> ".$this->total_amount." ".$this->total_num." wishing."]]> ".$this->wxappid." ".$this->sign." ";

  // <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_money100);
$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();
**/
?>

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持编程之家。

原文链接：https://www.f2er.com/php/15903.html

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