/**
  * 分析token
  * @param $token
  * @return array|int|null
  */
 public function _analysisToken($token)
 {
     //解密
     $arr = explode('_', Util::aesDecode($token));
     //验证码错误
     if (count($arr) < 3 || $arr[2] !== C('TOKEN_DISTURB_CODE')) {
         return null;
     }
     //验证码过期,一周失效
     if ($arr[1] < $this->time - C('TOKEN_EXPIRES_IN')) {
         return -1;
     }
     //24小时续期
     //        println('当前服务器时间:'.$this->time,false);
     //        println('时间差:'$this->time-$arr[1],false);
     //        print_r(C('TOKEN_REFRESH_TIME'));die;
     if ($this->time - $arr[1] > C('TOKEN_REFRESH_TIME')) {
         return array('userId' => $arr[0], 'mktime' => $arr[1], 'refresh_token' => $this->_createToken($arr[0]));
     }
     return array('userId' => $arr[0], 'mktime' => $arr[1]);
 }