<?php
//define your token
define("TOKEN", "chenxiang");//改成自己的TOKEN
define('APP_ID', '');//改成自己的APPID
define('APP_SECRET', '');//改成自己的APPSECRET
 
$wechatObj = new wechatCallbackapiTest(APP_ID,APP_SECRET);
$wechatObj->Run();
 
class wechatCallbackapiTest
{
  private $fromUsername;
  private $toUsername;
  private $times;
  private $keyword;
  private $app_id;
  private $app_secret;
 
 
  public function __construct($appid,$appsecret)
  {
# code...
    $this->app_id = $appid;
    $this->app_secret = $appsecret;
  }
  public function valid()
  {
    $echoStr = $_GET["echostr"];
    if($this->checkSignature()){
      echo $echoStr;
      exit;
    }
  }
  /**
   * 运行程序
   * @param string $value [description]
   */
  public function Run()
  {
    $this->responseMsg();
    $arr[]= "您好，这是自动回复，我现在不在，有事请留言，我会尽快回复你的^_^";
    echo $this->make_xml("text",$arr);
  }
  public function responseMsg()
  {  
    $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];//返回回复数据
    if (!empty($postStr)){
      $access_token = $this->get_access_token();//获取access_token
      $this->createmenu($access_token);//创建菜单
      //$this->delmenu($access_token);//删除菜单
      $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
      $this->fromUsername = $postObj->FromUserName;//发送消息方ID
      $this->toUsername = $postObj->ToUserName;//接收消息方ID
      $this->keyword = trim($postObj->Content);//用户发送的消息
      $this->times = time();//发送时间
      $MsgType = $postObj->MsgType;//消息类型
      if($MsgType=='event'){
        $MsgEvent = $postObj->Event;//获取事件类型
        if ($MsgEvent=='subscribe') {//订阅事件
          $arr[] = "你好，我是xxx，现在我们是好友咯![愉快][玫瑰]";
          echo $this->make_xml("text",$arr);
          exit;
        }elseif ($MsgEvent=='CLICK') {//点击事件
          $EventKey = $postObj->EventKey;//菜单的自定义的key值，可以根据此值判断用户点击了什么内容，从而推送不同信息
          $arr[] = $EventKey;
          echo $this->make_xml("text",$arr);
          exit;
        }
      }
    }else {
      echo "this a file for weixin API!";
      exit;
    }
  }
  /**
   * 获取access_token
   */
  private function get_access_token()
  {
    $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$this->app_id."&secret=".$this->app_secret;
    $data = json_decode(file_get_contents($url),true);
    if($data['access_token']){
      return $data['access_token'];
    }else{
      return "获取access_token错误";
    }
  }
  /**
   * 创建菜单
   * @param $access_token 已获取的ACCESS_TOKEN
   */
  public function createmenu($access_token)
  {
    $url = "https://api.weixin.qq.com/cgi-bin/menu/create?access_token=".$access_token;
    $arr = array( 
        'button' =>array(
          array(
            'name'=>urlencode("生活查询"),
            'sub_button'=>array(
              array(
                'name'=>urlencode("天气查询"),
                'type'=>'click',
                'key'=>'VCX_WEATHER'
                ),
              array(
                'name'=>urlencode("身份证查询"),
                'type'=>'click',
                'key'=>'VCX_IDENT'
                )
              )
            ),
          array(
            'name'=>urlencode("轻松娱乐"),
            'sub_button'=>array(
              array(
                'name'=>urlencode("刮刮乐"),
                'type'=>'click',
                'key'=>'VCX_GUAHAPPY'
                ),
              array(
                'name'=>urlencode("幸运大转盘"),
                'type'=>'click',
                'key'=>'VCX_LUCKPAN'
                )
              )
            ),
          array(
              'name'=>urlencode("我的信息"),
              'sub_button'=>array(
                array(
                  'name'=>urlencode("关于我"),
                  'type'=>'click',
                  'key'=>'VCX_ABOUTME'
                  ),
                array(
                  'name'=>urlencode("工作信息"),
                  'type'=>'click',
                  'key'=>'VCX_JOBINFORMATION'
                  )
                )
             )
            )
            );
    $jsondata = urldecode(json_encode($arr));
    $ch = curl_init();
    curl_setopt($ch,CURLOPT_URL,$url);
    curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
    curl_setopt($ch,CURLOPT_POST,1);
    curl_setopt($ch,CURLOPT_POSTFIELDS,$jsondata);
    curl_exec($ch);
    curl_close($ch);
  }
  /**
   * 查询菜单
   * @param $access_token 已获取的ACCESS_TOKEN
   */
 
  private function getmenu($access_token)
  {
# code...
    $url = "https://api.weixin.qq.com/cgi-bin/menu/get?access_token=".$access_token;
    $data = file_get_contents($url);
    return $data;
  }
  /**
   * 删除菜单
   * @param $access_token 已获取的ACCESS_TOKEN
   */
 
  private function delmenu($access_token)
  {
# code...
    $url = "https://api.weixin.qq.com/cgi-bin/menu/delete?access_token=".$access_token;
    $data = json_decode(file_get_contents($url),true);
    if ($data['errcode']==0) {
# code...
      return true;
    }else{
      return false;
    }
  }
 
  /**
   *@param type: text 文本类型, news 图文类型
   *@param value_arr array(内容),array(ID)
   *@param o_arr array(array(标题,介绍,图片,超链接),...小于10条),array(条数,ID)
   */
 
  private function make_xml($type,$value_arr,$o_arr=array(0)){
    //=================xml header============
    $con="<xml>
      <ToUserName><![CDATA[{$this->fromUsername}]]></ToUserName>
      <FromUserName><![CDATA[{$this->toUsername}]]></FromUserName>
      <CreateTime>{$this->times}</CreateTime>
      <MsgType><![CDATA[{$type}]]></MsgType>";
 
    //=================type content============
    switch($type){
 
      case "text" : 
        $con.="<Content><![CDATA[{$value_arr[0]}]]></Content>
          <FuncFlag>{$o_arr}</FuncFlag>"; 
          break;
 
      case "news" : 
        $con.="<ArticleCount>{$o_arr[0]}</ArticleCount>
          <Articles>";
        foreach($value_arr as $id=>$v){
          if($id>=$o_arr[0]) break; else null; //判断数组数不超过设置数
          $con.="<item>
            <Title><![CDATA[{$v[0]}]]></Title> 
            <Description><![CDATA[{$v[1]}]]></Description>
            <PicUrl><![CDATA[{$v[2]}]]></PicUrl>
            <Url><![CDATA[{$v[3]}]]></Url>
            </item>";
        }
        $con.="</Articles>
          <FuncFlag>{$o_arr[1]}</FuncFlag>"; 
          break;
 
    } //end switch
 
    //=================end return============
    $con.="</xml>";
 
    return $con;
  }
 
 
  private function checkSignature()
  {
    $signature = $_GET["signature"];
    $timestamp = $_GET["timestamp"];
    $nonce = $_GET["nonce"];  
 
    $token = TOKEN;
    $tmpArr = array($token, $timestamp, $nonce);
    sort($tmpArr);
    $tmpStr = implode( $tmpArr );
    $tmpStr = sha1( $tmpStr );
 
    if( $tmpStr == $signature ){
      return true;
    }else{
      return false;
    }
  }
}
?>