php BB code

[Xenon]

well some functions cannot be handled just within the acp, as the code highlighting is not doable with plain html, but needs some php.

but actually it's not hard to achieve something similar,

look into include/functions_bbcodeparse.php

you can see there how the quote code is handled (take a closer look at the $username parameter) and just add the same things to the php tag part of the code