[White_Snake]

well, the syntaxis error i can see is that you're using $DB_site-> and as far as i know that's from vb 3.0.x

so the proper command should be

$vbulletin->db->query_frist, so, making the whole sentence be:

PHP Code:

$cutoff=time()-86400; 
$postcount=$vbulletin->db->query_first("SELECT COUNT(*) AS total FROM post WHERE userid='$userid' AND dateline >= $cutoff");