/**
  * 发送短信操作
  * @param $user
  * @param $password
  * @param $mobiles
  * @param $message
  * @param $sign
  * @param $sendTime
  * @return bool
  */
 private function sendSms($user, $password, $mobiles, $message)
 {
     $datas = array('method' => 'Submit', 'account' => $user, 'password' => $password, 'mobile' => $mobiles, 'content' => $message);
     $httpClient = new HttpClient();
     $result = $httpClient->get(self::$gateway, $datas);
     //解析xml文档
     $xml = simplexml_load_string($result);
     $this->result = $xml->msg;
     //__print($xml);
     return $xml->code == '2';
 }