array_walk($members,'validate_members');
$r = q("DELETE FROM `group_member` WHERE `gid` = %d AND `uid` = %d",
intval($a->argv[1]),
array_walk($members,'validate_members');
$r = q("DELETE FROM `group_member` WHERE `gid` = %d AND `uid` = %d",
intval($a->argv[1]),