Compare tool for PHP

[Bunro]

I am looking for a tool to be able to compare an old and new file. PHP code and other like HTML.
I have read about Examdiff? Is there any body that have any experience with this tool and or other tools?

I am currently working with WinMerge on my Win XP machine, but I would like to move more to Ubuntu.

I would like to here

Regards, Robert

PS. I did not find it in the Ubuntu repository. If you have any suggestions for installation it would be great!

[supirman]

Personally, I like tkdiff. We use it at work and it suits my needs well.

sudo apt-get install tkdiff

screenshot attached as a demo

[bieber]

You could set up an SVN repository, which would allow you to make diffs between versions.