[@_ck_ Participant 16 years, 10 months ago]

I don’t follow.

You want to add dd/dt tags or do you want PHP code formatting/colouring?

There already is another plugin to do code formatting/colours but due to the spectacularly bad search and lack of 3rd party tagging on plugins, I can’t find it

Ah here it is:

BBPress:Syntax Hiliter

https://bbpress.org/plugins/topic/bbpresssyntax-hiliter/