$res = $mdb2->query($sql);
if (!is_a($res, 'PEAR_Error')) {
$val = $res->fetchRow();
$parent_id = $val['parent_id'];
if ($parent_id) {
// Get parent group name.
$res = $mdb2->query($sql);
if (!is_a($res, 'PEAR_Error')) {
$val = $res->fetchRow();
$parent_id = $val['parent_id'];
if ($parent_id) {
// Get parent group name.