PHP implements WeChat official account to automatically send red envelope API

Sending red envelopes on WeChat has become a popular form of blessing today. Everyone has learned to use WeChat to send red envelopes. This article mainly introduces the PHP WeChat public account to automatically send red envelopes API. Interested friends can refer to it.

The details are as follows:

Post the core interface code and fill in the data yourself. The interface test is OK
wechat_packet.php

<!--?php
/**
 * 发送红包接口
 * Created by PhpStorm.
 * User: ADKi
 * Date: 2016/4/25 0025
 * Time: 15:25
 */

class wechat_packet{
 private $url = &#39;https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack&#39;;//请求URL
 private $mch_id;//商户号
 private $weixin_appid;//公众账号appid
 private $send_name;//商户名称
 private $total_num = 1;//发送红包总人数
 private $wishing;//红包祝福语
 private $client_ip;//调用接口的机器Ip地址
 private $act_name;//活动名称
 private $remark;//备注信息
 private $nonce_str;//随机字符串，不长于32位
 private $api_password;
 private $arraytoxml;//数组转xml
 /**
  * 公钥
  */
 private $public_key = "/api/wechat/cert/apiclient_cert.pem";
 /**
  * 私钥
  */
 private $private_key = &#39;/api/wechat/cert/apiclient_key.pem&#39;;
 /**
  * ca证书
  */
 private $rootca = &#39;api/wechat/cert/rootca.pem&#39;;
 public function __construct()
 {
  //初始化红包设置信息
  $this--->weixin_appid = C(&#39;wap_weixin_appid&#39;);
  $this->mch_id = C(&#39;wechat_mch_id&#39;);
  $this->send_name = C(&#39;wechat_send_name&#39;);
  $this->wishing = C(&#39;wechat_wishing&#39;);
  $this->act_name = C(&#39;wechat_act_name&#39;);
  $this->client_ip = $_SERVER[&#39;SERVER_ADDR&#39;];
  $this->remark = C(&#39;wechat_remark&#39;);
  $this->nonce_str = $this->create_nonce_str(32);
  $this->api_password = C(&#39;wechat_api_password&#39;);
  $inc_file = BASE_PATH.DS.&#39;api&#39;.DS.&#39;wechat&#39;.DS.&#39;arraytoxml.php&#39;;
  if(is_file($inc_file)) {
   require($inc_file);
  }
  $this->arraytoxml = new ArrayToXML();
 }
 
 public function send_post($mch_billno,$re_openid,$total_amount){
  $sign = $this->create_sign($mch_billno,$re_openid,$total_amount);
  $send_array = array(
   &#39;nonce_str&#39; => $this->nonce_str,
   &#39;mch_billno&#39; => $mch_billno,
   &#39;mch_id&#39; => $this->mch_id,
   &#39;wxappid&#39; => $this->weixin_appid,
   &#39;send_name&#39; => $this->send_name,
   &#39;re_openid&#39; => $re_openid,
   &#39;total_amount&#39; => $total_amount,
   &#39;total_num&#39; => $this->total_num,
   &#39;wishing&#39; => $this->wishing,
   &#39;client_ip&#39; => $this->client_ip,
   &#39;act_name&#39; => $this->act_name,
   &#39;remark&#39; => $this->remark,
   &#39;sign&#39; => $sign,
  );
  $send_xml = $this->arraytoxml->toXml($send_array,&#39;&#39;);
  $data = $this->curl_post_ssl($this->url, $send_xml);
  $data = $this->xmlToArray($data);
  file_put_contents(&#39;adki&#39;,var_export($data,true),FILE_APPEND);
 }
 /*
 请确保您的libcurl版本是否支持双向认证，版本高于7.20.1
 */
 private function curl_post_ssl($url, $vars, $second=30,$aHeader=array()){
  $ch = curl_init();
  //超时时间
  curl_setopt($ch,CURLOPT_TIMEOUT,$second);
  curl_setopt($ch,CURLOPT_RETURNTRANSFER, 1);
  //这里设置代理，如果有的话
  //curl_setopt($ch,CURLOPT_PROXY, &#39;10.206.30.98&#39;);
  //curl_setopt($ch,CURLOPT_PROXYPORT, 8080);
  curl_setopt($ch,CURLOPT_URL,$url);
  curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);
  curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,false);
  //以下两种方式需选择一种
  //第一种方法，cert 与 key 分别属于两个.pem文件
  //默认格式为PEM，可以注释
  curl_setopt($ch,CURLOPT_SSLCERTTYPE,&#39;PEM&#39;);
  curl_setopt($ch,CURLOPT_SSLCERT,getcwd().$this->public_key);
  //默认格式为PEM，可以注释
  curl_setopt($ch,CURLOPT_SSLKEYTYPE,&#39;PEM&#39;);
  curl_setopt($ch,CURLOPT_SSLKEY,getcwd().$this->private_key);
  //ca证书
  curl_setopt($ch,CURLOPT_CAINFO,$this->rootca);
  //第二种方式，两个文件合成一个.pem文件
  //curl_setopt($ch,CURLOPT_SSLCERT,getcwd().&#39;/all.pem&#39;);
  if( count($aHeader) >= 1 ){
   curl_setopt($ch, CURLOPT_HTTPHEADER, $aHeader);
  }
  curl_setopt($ch,CURLOPT_POST, 1);
  curl_setopt($ch,CURLOPT_POSTFIELDS,$vars);
  $data = curl_exec($ch);
  if($data){
   curl_close($ch);
   return $data;
  }
  else {
   $error = curl_errno($ch);
   echo "call faild, errorCode:$error\n\n\n\n";
   curl_close($ch);
   return false;
  }
 }
 //生成签名
 private function create_sign($mch_billno,$re_openid,$total_amount){
  $string_array = array(
   &#39;act_name&#39; => $this->act_name,
   &#39;client_ip&#39; => $this->client_ip,
   &#39;mch_billno&#39; => $mch_billno,
   &#39;mch_id&#39; => $this->mch_id,
   &#39;nonce_str&#39; => $this->nonce_str,
   &#39;re_openid&#39; => $re_openid,
   &#39;remark&#39; => $this->remark,
   &#39;send_name&#39; => $this->send_name,
   &#39;total_amount&#39; => $total_amount,
   &#39;total_num&#39; => $this->total_num,
   &#39;wishing&#39; => $this->wishing,
   &#39;wxappid&#39; => $this->weixin_appid,
  );
  foreach ($string_array as $key => $value){

   if(!empty($value)){

    $stringA .= "$key=$value";
    if($key != &#39;wxappid&#39;){

     $stringA .= &#39;&&#39;;
    }
   }
  }
  //转成UTF-8
  $stringA = $this->gbkToUtf8($stringA);
  $stringSignTemp="$stringA&key=$this->api_password";
  $sign = MD5($stringSignTemp);

  $sign = strtoupper($sign);
  return $sign;
 }
 //生成随机字符串
 private function create_nonce_str($length){
  $str = null;
  $strPol = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz";
  $max = strlen($strPol)-1;
  for($i=0;$i<$length;$i++){
   $str.=$strPol[rand(0,$max)];//rand($min,$max)生成介于min和max两个数之间的一个随机整数
  }

  return $str;
 }
 /**
  *自动判断把gbk或gb2312编码的字符串转为utf8
  *能自动判断输入字符串的编码类，如果本身是utf-8就不用转换，否则就转换为utf-8的字符串
  *支持的字符编码类型是：utf-8,gbk,gb2312
  *@$str:string 字符串
  */
 private function gbkToUtf8($str){
  $charset = mb_detect_encoding($str,array(&#39;ASCII&#39;,&#39;UTF-8&#39;,&#39;GBK&#39;,&#39;GB2312&#39;));
  $charset = strtolower($charset);
  if("utf-8" != $charset){
   $str = iconv(&#39;UTF-8&#39;,$charset,$str);
  }
  return $str;

 }
 private function xmlToArray($postStr){
  $msg = array();
  $msg = (array)simplexml_load_string($postStr, &#39;SimpleXMLElement&#39;, LIBXML_NOCDATA);
  return $msg;
 }
}

Array to xml:arraytoxml.php

<!--?php
/**
 * Created by PhpStorm.
 * User: ADKi
 * Date: 2016/4/26 0026
 * Time: 12:19
 */
class ArrayToXML
{
 public function toXml($data){
  $xml = &#39;<xml-->&#39;;
  foreach ($data as $key => $value){
   if (is_numeric($value)){
    $xml .= "<".$key.">".$value."<!--".$key."-->";
   }else{
    $xml .= "<".$key."><!--[CDATA[".$value."]]--><!--".$key."-->";
   }
  }
  $xml .= &#39;&#39;;
  return $xml;
 }

}

Summary: The above is the entire content of this article, I hope it will be helpful to everyone's study.

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