/**
  * @return bool
  */
 public function setUuid()
 {
     $param = array('appid' => 'wx782c26e4c19acffb', 'fun' => 'new', 'lang' => 'zh_CN', '_' => time());
     $responseData = Requests::post('https://login.weixin.qq.com/jslogin', null, $param);
     $body = $responseData->body;
     preg_match_all('/window.QRLogin.code = (\\d+); window.QRLogin.uuid = "(\\S+?)"/', $body, $array);
     //status code
     $statusCode = $array[1][0];
     $uuid = $array[2][0];
     if ($statusCode == 200) {
         self::$uuid = $uuid;
         return true;
     }
     return false;
 }