the most amazing php code i have ever seen so far

i have seen many php code. i learn php on my own, and during early days with
php,
i download many open source php project and try to learn the coding on my
own.
i did see many code (ugly, spaghetti code etc). Some even  take me few
hours to figure out
how it works.

But one project using php in a very clean way. The codeis look so simple.
yet do so much thing.
Personally, i vote for www.eyeos.org project for the best php code. Anyone
know better?