public function createewm(){
         if(IS_POST){
             $access_token=checkAccessToken($this->token);  //获取access_token
             $json_url='https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token='.$access_token;
              
             $action_name=$this->_post('action_name');   //生成类型(临时、永久)
             $create_num=$this->_post('create_num');     //生成数量
 
             //数据库里查询最后生成一个编号
             $now_secne_id=M('erweima')->where(array('token'=>$this->token))->order('scene_id desc')->getField('scene_id');
 
             //新生成在最后一个编辑上加1
             $start_secne_id=intval($now_secne_id)+1;
             $end_secne_id=intval($now_secne_id)+intval($create_num);
             $n=0;
            for($i=$start_secne_id;$i<=$end_secne_id;$i++){
                 $curl_data='';
                 if($action_name=='QR_SCENE'){
                     //临时 post的json数据
                     $curl_data='{"expire_seconds": 1800, "action_name": "QR_SCENE", "action_info": {"scene": {"scene_id": '.$i.'}}}';
                 }
                 
                 if($action_name=='QR_LIMIT_SCENE'){                     //永久 post的json数据

                     $curl_data='{"action_name": "QR_LIMIT_SCENE", "action_info": {"scene": {"scene_id": '.$i.'}}}';
                } 
                $json_info=json_decode($this->api_notice_increment($json_url,$curl_data),true); 
 
                 //这里代表生成成功，记录数据以便插入到数据库，方便以后统计查找
                 if($json_info['errcode']!=40013){ 
                     $data[$n]['token']=$this->token;
                     $data[$n]['tiket']=$json_info['ticket'];
                     $data[$n]['url']=$json_info['url'];
                     $data[$n]['scene_id']=$i;
                     $data[$n]['expire_seconds']=$json_info['expire_seconds'];
                     $data[$n]['action_name']=$action_name;
                     $data[$n]['remark']='';
                     $data[$n]['createtime']=time();
                     $n++;
                 }else{
                     $this->error('操作失败');
                 }
             }
 
             if(count($data)>0){
                 $res= M('erweima')->addAll($data);//插入数据
                 if($res){
                     $this->success('添加成功');
                 }else{
                     $this->error('操作失败');
                 }
             }else{
                 $this->error('操作失败');
             } 
         } 
     }
function api_notice_increment($url, $data){
        $ch = curl_init();
        $header = "Accept-Charset: utf-8";
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
        curl_setopt($curl, CURLOPT_HTTPHEADER, $header);
        curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (compatible; MSIE 5.01; Windows NT 5.0)');
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
        curl_setopt($ch, CURLOPT_AUTOREFERER, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        $tmpInfo = curl_exec($ch);
        if (curl_errno($ch)) {
            //curl_close( $ch )
            return $ch;
        }else{
            //curl_close( $ch ) 
            return $tmpInfo;
        }
        curl_close( $ch ) ;
    }