MySQL Field Not Updating

[Rebecca217]

I'm trying to update a field called "credits" in the user table when a forum member posts a new thread. The code below runs with no PHP or MySQL errors, but the "credits" field isn't updated ($cost isn't subtracted).

Can anyone offer guidance on what I'm doing wrong?

Thanks!

Rebecca

PHP Code:

// Critpoint cost of each critique 

$cost = 2; 

$critpoints = $vbulletin->userinfo['credits'];



if ($foruminfo['critforum'] == 1)

{

if($critpoints < $cost)

{

eval(standard_error(fetch_error('not_enough_critpoints')));

}

else

{

$vbulletin->db->query_write("UPDATE " . TABLE_PREFIX . "user 

SET credits = credits - $cost 

WHERE userid = '$vbulletin->userinfo[userid]'

");

}

} 

*EDITED*

Never mind. I figured this out. I'd been formatting the userid incorrectly in the last (quesry) section. In case this is useful to anyone else, here is the corrected/working code:

PHP Code:

// Critpoint cost of each critique  

$cost = 2;  

$critpoints = $vbulletin->userinfo['credits']; 



if ($foruminfo['critforum'] == 1) 

{ 

if($critpoints < $cost) 

{ 

eval(standard_error(fetch_error('not_enough_critpoints'))); 

} 

else 

{ 

$vbulletin->db->query_write("UPDATE " . TABLE_PREFIX . "user  

SET credits = credits - $cost  

WHERE userid = '" . $vbulletin->userinfo['userid'] . "' 

"); 

} 

} 

Hope this is helpful to someone else!

Rebecca