实现PHP微信红包API接口

首先给大家看一看这个表格：

相关学习推荐：PHP编程（视频）

根据微信高级红包接口，开发PHP版本的API接口，现在进行主要代码分析。

红包接口调用请求代码，所有请求参数为必填参数与文档对应：

class Wxapi {
     PRivate $app_id = 'wxXXXXXXXXXXXX';
     //公众账号appid，首先申请与之配套的公众账号 private $app_secret = 'XXXXXXXXXXXXXXXXXXXXXXXX';
    //公众号secret，用户获取用户授权token private $app_mchid = 'XXXXXXXX';
//商户号id function __construct(){
 //do sth here.... }
 /**  * 微信支付  * @param string $oPEnid 用户openid  */ public function pay($re_openid) {
      include_once('WxHongBaoHelper.php');
      $commonUtil = new CommonUtil();
      $wxHongBaoHelper = new WxHongBaoHelper();
      $wxHongBaoHelper->
    setParameter("nonce_str", $this->
    great_rand());
    //随机字符串，丌长于 32 位  $wxHongBaoHelper->
    setParameter("mch_billno", $this->
    app_mchid.date('YmdHis').rand(1000, 9999));
    //订单号  $wxHongBaoHelper->
    setParameter("mch_id", $this->
    app_mchid);
    //商户号  $wxHongBaoHelper->
    setParameter("wxappid", $this->
    app_id);
      $wxHongBaoHelper->
    setParameter("nick_name", '红包');
    //提供方名称  $wxHongBaoHelper->
    setParameter("send_name", '红包');
    //红包发送者名称  $wxHongBaoHelper->
    setParameter("re_openid", $re_openid);
    //相对于医脉互通的openid  $wxHongBaoHelper->
    setParameter("total_amount", 100);
    //付款金额，单位分  $wxHongBaoHelper->
    setParameter("min_value", 100);
    //最小红包金额，单位分  $wxHongBaoHelper->
    setParameter("max_value", 100);
    //最大红包金额，单位分  $wxHongBaoHelper->
    setParameter("total_num", 1);
    //红包収放总人数  $wxHongBaoHelper->
    setParameter("wishing", '感谢您参与红包派发活动，祝您新年快乐！');
    //红包祝福诧  $wxHongBaoHelper->
    setParameter("client_ip", '127.0.0.1');
    //调用接口的机器 Ip 地址  $wxHongBaoHelper->
    setParameter("act_name", '红包活动');
    //活劢名称  $wxHongBaoHelper->
    setParameter("remark", '快来抢！');
    //备注信息  $postXMl = $wxHongBaoHelper->
    create_hongbao_xML();
      $url = 'https://api.mch.weixin.QQ.COM/mmpaymkttransfers/sendredpack';
      $responseXml = $wxHongBaoHelper->
    curl_post_ssl($url, $postXml);
      //用作结果调试输出  //echo htmlentITies($responseXml,ENT_COMPAT,'UTF-8');
     $responseObj = simplexml_load_string($responseXml, 'SimpleXMLElement', LIBXML_NOCDATA);
     return $responseObj->
    return_code;
 }
    

获取随机字符串方法：

/** * 生成随机数 */  public function great_rand(){
     $str = '1234567890abcdefghijklmnopqrstuvwxyz';
     for($i=0;
    $i30;
$i++){
      $j=rand(0,35);
      $t1 .= $str[$j];
 }
     return $t1;
 }
    

签名算法：

/**例如：appid： wxd111665abv58f4fmch_id： 10000100device_info： 1000Body： testnonce_str： ibuaiVcKdpRxkhJA第一步：对参数按照 key=value 的格式，并按照参数名 ASCII 字典序排序如下：stringA="appid=wxd930ea5d5a258f4f&
    body=test&
    device_info=1000&
    mch_id=10000100&
    nonce_str=ibuaiVcKdpRxkhJA";
    第二步：拼接支付密钥：stringSignTemp="stringA&
key=192006250b4c09247ec02edce69f6a2d"sign=MD5(stringSignTemp).toUpperCase()="9A0A8659F005D6984697E2CA0A9CF3B7"*/protected function get_sign(){
     define('PARTNERKEY',"QSRXXXXXXXXXXXXXXXXXXXXX");
 try {
  if (null == PARTNERKEY || "" == PARTNERKEY ) {
       throw new SDKRuntimeException("密钥不能为空！" . "br>
    ");
  }
      if($this->
check_sign_parameters() == false) {
     //检查生成签名参数   throw new SDKRuntimeException("生成签名参数缺失！" . "br>
    ");
  }
      $commonUtil = new CommonUtil();
      ksort($this->
    parameters);
      $unSignParaString = $commonUtil->
    formatQueryParaMap($this->
    parameters, false);
      $md5SignUtil = new MD5SignUtil();
      return $md5SignUtil->
    sign($unSignParaString,$commonUtil->
    trimString(PARTNERKEY));
 }
catch (SDKRuntimeException $e) {
      die($e->
    errorMessage());
 }
 }
    

CURL请求以及发送证书：

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($ch,CURLOPT_URL,$url);
     curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);
     curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,false);
       //cert 与 key 分别属于两个.pem文件 //请确保您的libcurl版本是否支持双向认证，版本高于7.20.1 curl_setopt($ch,CURLOPT_SSLCERT,dirname(__FILE__).DIRECTORY_SEPARATOR.'zhengshu'.DIRECTORY_SEPARATOR.'apiclient_cert.pem');
     curl_setopt($ch,CURLOPT_SSLKEY,dirname(__FILE__).DIRECTORY_SEPARATOR.'zhengshu'.DIRECTORY_SEPARATOR.'apiclient_key.pem');
     curl_setopt($ch,CURLOPT_CAINFO,dirname(__FILE__).DIRECTORY_SEPARATOR.'zhengshu'.DIRECTORY_SEPARATOR.'rootca.pem');
     if( count($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:$error\n";
       curl_close($ch);
      return false;
 }
}
    

入口文件：

@require "pay.php";
    //获取用户信息$get = $_GET['param'];
    $code = $_GET['code'];
    //判断code是否存在if($get=='access_token' &
    &
 !empty($code)){
     $param['param'] = 'access_token';
     $param['code'] = $code;
     $packet = new Packet();
     //获取用户openid信息 $userinfo = $packet->
    _route('userinfo',$param);
 if(empty($userinfo['openid'])){
      exit("NOAUTH");
 }
     //调取支付方法 $packet->
    _route('wxpacket',array('openid'=>
    $userinfo['openid']));
}
else{
     $packet->
    _route('userinfo');
}
    

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