[kh99]

In your board_inside_forum_listing template, you can only use variables that have been registered to it (or certain variables that are registered automatically). You don't show the code where you rendered your template, but I assume somewhere you have something like:

$template = vB_Template::create('board_inside_forum_listing');
$template->register('forumid', $forumid);
$template->render(); // of course you'd assign the result of this to something...

you'd want to add a register line in the middle to register the forumid (I'm not sure if $forumid would be the right variable - it depends where you're registering it). Then in board_inside_forum_listing you could use {vb:raw forumid}, or $forumid in a condition.


The second example you show might have worked, but the ob_start()/ob_end_clean() thing captures the output of any code that's between it, and yours didn't output anything. But that code is from an example of how to include an external php file that outputs some html (for instance), so that isn't what you want to use for your siutuation.

If you haven't seen this article yet, it might help: https://vborg.vbsupport.ru/showthread.php?t=228078