Recursively Renaming files

My hosting provider offers PHP4 and PHP5. Unfortunately, all files ending in .php get interpreted by PHP4, while all files ending in .php5 get interpreted by PHP5. So, how do I quickly change all of my files that end in .php to .php5?

Do a google search for "recursively rename files", and you might run across this:

http://seal-7.blogspot.com/2006/12/recursively-rename-files-with-regex-one.html

So, to accomplish my task, I use the following:

find . -type f -print0 | xargs -0 rename 's/.php$/.php5/g'

Awesomeness.