[Adrian Schneider]

There is no need to escape (or quote) integers in your query... you can clean it up quite a bit like this:

PHP Code:

$hp = $db->query_first("
    SELECT posts, title 
    FROM " . TABLE_PREFIX . "hosting_plans 
    WHERE planid = " . $vbulletin->GPC['planid']
); 


Also, not sure if you figured this out from calorie's post, but using fetch_array() on the data returned by query_first() won't work, because query_first is the equivalent of calling query_read() then fetch_array().