Welcome to Time Waster article #1. Time Waster is going to be where I put weird little easter eggs as I find them. Either programming hiccups or weird software oddities that caused me to waste time. Today's Time Waster involves the PHP website itself. To participate, you will need Firefox with the Firebug plugin installed.
Visit the PHP website in Firefox.
Now, open up Firebug and you should see something like this:
(Why, yes, I did notice.)
A few other people have noticed this. Looking at the source code for their site doesn't have any explanation for its existence. Someone on the PHP developer team thinks they are cute.