<"status_message".
  if (!isset($data->status_message))
   return $data;
  throw new CompeteException('Status: ' . $data->status . '. ' .$data->status_message);
 }
 /**
  * Cut unnecessary parts of url.
  * @param string $url some url.
  * @return string trimmed url.
  */
 private function _prepareUrl($url) {
  return str_replace($this->_toSearch, $this->_toReplace, $url);
 }
 /**
  * Execute http get method.
  * @param string $url request url.
  * @return string response.
  */
 private function _get($url) {
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_USERAGENT, self::USER_AGENT);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  return curl_exec($ch);
 }
}