function getFilesList()
{
  $query = "SELECT * FROM images ORDER BY czas DESC LIMIT 5";

  if($result = $this->dbo->query($query)){
    if($rows = $result->fetchAll(PDO::FETCH_ASSOC)){
      return $rows;
    }
    else{
      return array();
    }
  }
  else{
    return array();
  }
}