Infraction Hook

[Chris.08i]

I have tried this code

PHP Code:

global $vbulletin, $db, $userinfo; 

if ($vbulletin->GPC['points'] > 0) { 
    $points = $userinfo['ipoints']; 
    $rep = $userinfo['reputation']; 

    if ($points > 0) 
    { 
        $newrep = ($rep - $points*500); 
    } 
    else 
    { 
        $newrep = ($rep - 150); 
    } 

    $vbulletin->db->query_write(" 
        UPDATE " . TABLE_PREFIX . "user 
        SET reputation = " . $newrep . " 
        WHERE userid = " . $userinfo['userid'] 
    ); 
} 


It still will not subtract.

I am running 4.1.4

I really appreciate the help you two are giving me!