Where is $vbulletin->options['crontab'] defined?

[Adult SEO]

$vbulletin->options['crontab']

I can't find the source for this variable. Not in the vBulletin settings table nor in any PHP file.

My vBulletin cron isn't working and the reason is that this variable isn't set.

[Lynne]

Did you make sure you didn't remove the code in the footer regarding the $cron jobs (it's inbetween comments saying Do Not Remove or your Scheduled Tasks Won't Work).

[Adult SEO]

Well, that is not the problem. I am calling the cron directly (cron.php).

In this cron.php the script will exit if this $vbulletin->options['crontab'] variable isn't set. So I started looking for the source of this variable but couldn't find it anywhere.

The vBulletin version is 3.8.3 btw.

--------------- Added 1248002563 at 1248002563 ---------------

Does anyone have an idea where to search for it?