Allowing underscore in preg_replace

[jeddiki]

Hello,

I am using this:

preg_replace( somestuff  (.+?)  somestuff  );

Does that (.+?) allow the underscore ?
From my results, I suspect it doesn't

To include the underscore, do I just add it like: (._+?) ?

Don't know why but I think this might be wrong.

[Dormilich]

. also allows the underscore.

why it doesn’t work in your case I don’t know.