function createGroup($groname, $users)
{
$this->fieldClean($groname);
$sql = "CREATE GROUP \"{$groname}\"";
if (is_array($users) && sizeof($users) > 0) {
$this->fieldArrayClean($users);
$sql .= ' WITH USER "' . join('", "', $users) . '"';
}
return $this->execute($sql);
}