[Opserty]

Try this though I don't think it will work:

PHP Code:

$query = $db->query_read("SELECT nick FROM denora.user WHERE hostname  NOT LIKE 'localhost.net' AND hostname NOT LIKE '%mydomain.tld%' AND online = 'Y'");
if($db->num_rows($query))
{
    $chatters = '';
    while($chatter = $db->fetch_array($query))
    {
        $chatters .= $chatter['nick'];
        $chatters .= ', ';
    }
}

$chatusers = substr_replace($chatters, '', -2); 


Can you verify that the query is returning users? (Try executing in the AdminCP [> Maintenance > Execute SQL Query])