//图文群发
public function tuwenqunfa(){
        $accessTokenInfo = file_get_contents("access_token.log");
    if($accessTokenInfo){
    $tokenArr = json_decode($accessTokenInfo,true);
    //var_dump($tokenArr);
    if((time() + $tokenArr[\'expires_in\'] -200) >time()){//保证不过期，减去200秒，做缓冲
        $access_token = $tokenArr[\'access_token\'];
        $url="https://api.weixin.qq.com/cgi-bin/material/add_news?access_token=".$access_token;
        $media_id=$this->getmedia_id();
        //var_dump($media_id);
        $data=\'{
   "articles": [     {
                        "thumb_media_id":"\'.$media_id.\'",
                        "author":"李强",        
                        "title":"图文消息1",         
                        "content_source_url":"www.baidu.com",        
                        "content":"这是内容吧",         
                        "digest":"digest",
                        "show_cover_pic":1,
                        "need_open_comment":1,
                        "only_fans_can_comment":1
                        },     
                        {
                        "thumb_media_id":"\'.$media_id.\'",
                        "author":"xxx",        
                        "title":"图文消息2",         
                        "content_source_url":"www.qq.com",        
                        "content":"这是内容",         
                        "digest":"digest",
                        "show_cover_pic":0,
                        "need_open_comment":1,
                        "only_fans_can_comment":1
                        }
   ]
}\';

        //上传图文素材
        $res=$this->http_request($url,$data);
        //var_dump($res);
        $res=json_decode($res);
        //预览接口
         $url2 = "https://api.weixin.qq.com/cgi-bin/message/mass/preview?access_token=".$access_token;
         //群发接口
        //$url2="https://api.weixin.qq.com/cgi-bin/message/mass/sendall?access_token=".$access_token;
        $sucai_id=$res->media_id;
        //预览发布
        $data2=\'{
   "touser":"用户openid", 
   "mpnews":{              
     "media_id":"\'.$sucai_id.\'"               
    },
   "msgtype":"mpnews" 
}\';
        //群发图文素材
//         $data2=\'{
//    "filter":{
//       "is_to_all":true     
      
//    },
//    "mpnews":{
//       "media_id":"\'.$sucai_id.\'"
//    },
//     "msgtype":"mpnews"
   
// }\';
 $res2=$this->http_request($url2,$data2);
 var_dump($res2);
    }
}else{
//重新获取accesstoken
    $this->getaccesstoken();
}
}

//上传图片缩略图获取media_id
public function getmedia_id(){
      $accessTokenInfo = file_get_contents("access_token.log");
    if($accessTokenInfo){
    $tokenArr = json_decode($accessTokenInfo,true);
    //var_dump($tokenArr);
    if((time() + $tokenArr[\'expires_in\'] -200) >time()){//保证不过期，减去200秒，做缓冲
        $access_token = $tokenArr[\'access_token\'];
    $url="https://api.weixin.qq.com/cgi-bin/material/add_material?access_token=".$access_token."&type=thumb";    
    $file_path = dirname(__FILE__)."/1.jpg";
    //var_dump($file_path);
        //这里声明文件的路径，使用绝对路径
  $file_data = array(\'media\'  => \'@\'.$file_path);
     $res=$this->http_request($url,$file_data);
     $res=json_decode($res);
     //var_dump($res);
     return $res->media_id;

 }
}else{
//重新获取accesstoken
    $this->getaccesstoken();
}
}

//文本群发功能
public function wenbenqunfa(){
    $accessTokenInfo = file_get_contents("access_token.log");
    if($accessTokenInfo){
    $tokenArr = json_decode($accessTokenInfo,true);
    //var_dump($tokenArr);
    if((time() + $tokenArr[\'expires_in\'] -200) >time()){//保证不过期，减去200秒，做缓冲
        $access_token = $tokenArr[\'access_token\'];
        $url="https://api.weixin.qq.com/cgi-bin/message/mass/sendall?access_token=".$access_token;
        $data=\'{
"filter":{
"is_to_all":true
},
"text":{
"content":"测试群发消息"
},
"msgtype":"text"
}\';

    $res=$this->http_request($url,$data);
    //var_dump($res);
    }
}else{
    //重新获取accesstoken
    $this->getaccesstoken();
}
}