function getfiles($db, $files_array)
{
    $sql = "SELECT * from file_ids";
    if ($stmt = $db->prepare($sql)) {
        /* execute query */
        $stmt->execute();
        /* bind result variables */
        $stmt->bind_result($f_file_id, $f_filename, $f_desc);
        /* fetch values */
        while ($stmt->fetch()) {
            $temp_object = new files();
            $object = $temp_object->createFileObj($f_file_id, $f_filename, $f_desc);
            array_push($files_array, $object);
        }
        echo json_encode($files_array);
        //echo $files_array;
        /* close statement */
        $stmt->close();
    }
}