PHP naver geocode

gistfile1

  public static function nhnGeocode($addr)
  {
    return Cache::sear('geocode.'.$addr, function() use($addr){
      $api_key = Config::get('3rdparty.naver_api_key');
      $result_xml = File::getRemote("http://openapi.map.naver.com/api/geocode.php?key=$api_key&encoding=utf-8&coord=latlng&query=" . $addr);
      $xml = new SimpleXMLElement($result_xml);

      $lng = $xml->item[0]->point->x;
      $lat = $xml->item[0]->point->y;

      return array('lat' => (string)$lat, 'lng' => (string)$lng);

    });
  }