why is this array empty?

[sabret00the]

wondering why this won't work, the only bits that's not working is the commented out bit, i'm wondering just how it managed to wrong all of a sudden.
if ($_POST['do'] == 'dogroups')
{
globalize($_POST, array('grpsaction'));

foreach ($grpsaction AS $groupid => $action)
{
if ($action == 0)
{ // no point in checking the permission if they dont want to do anything to the group
continue;
}

$confessionid = intval($confessionid);

if ($action == 1)
{ // validate
$DB_site->query("
UPDATE " . TABLE_PREFIX . "grps
SET approved = 1
WHERE groupid = $groupid
");

//create grps_post row
//don't need to do this, it's done on the fly.
/*
//create grps_user row
//select data from db
$adduser = $DB_site->query("
SELECT *
FROM " . TABLE_PREFIX . "grps
WHERE groupid = $groupid
LIMIT 1
");

//intravenous
$DB_site->query("
INSERT INTO " . TABLE_PREFIX . "grps_user(groupid,userid,join_date)
VALUES ($adduser[groupid],$adduser[leaderid]," . NOW . ")
");
*/ }

basically i'm trying to add data into the second table based on the $groupid

however the $adduser array seems to be empty.

[tubedogg]

$adduser = $DB_site->query
should be
$adduser = $DB_site->query_first

[sabret00the]

thanks tubedogg, really really really appreciate that :)