function dwsf_facebook_id()
{
    $result = new stdClass();
    $query = isset($_GET['query']) ? $_GET['query'] : '';
    if ($query) {
        $result->facebook_id = dwsf_social_feed::fetch_id_facebook($query);
    } else {
        $result->error = true;
    }
    echo json_encode($result);
    exit(0);
}
 /**
  *	Get Facebook id from facebook page name	
  * 	
  *	@param $username string User facebook name
  */
 static function fetch_id_facebook($username)
 {
     $url = 'http://graph.facebook.com/' . $username;
     $content = dwsf_social_feed::getContent($url);
     $data = json_decode($content);
     if (isset($data->is_published) && $data->is_published) {
         return $data->id;
     } else {
         return false;
     }
 }