/**
  * Get two-letter continent code.
  *
  * @return string|false Continent code or FALSE on failure
  */
 public function getContinentCode()
 {
     // Use forked edition: https://github.com/netresearch/Net_GeoIP
     if (method_exists($this->geoLiteCountry, 'lookupContinentCode')) {
         return $this->geoLiteCountry->lookupContinentCode($this->ip);
     }
     // Currently not available within official Net_GeoIP package
     return false;
 }