design patterns - php

adm

Hi,
I have read a few books and articles on the subject of design
patterns but have to admit that many of the ideas haven't really
clicked for me - in general the explanations i've read seem rather obtuse.
The MVC and Singleton pattern make sense but i can't
really get my head around some of the others.

Can anyone point me in the direction of a good *clear* explanation
of some patterns , preferably , though not nessesarily , with an emphasis on php.

Thanks.

oeb

Fluffy Cat gives a good breakdown with code examples
http://www.fluffycat.com/PHP-Design-Patterns/

And IBM Developer Works lists 5 of the most common ones (Factory, Singleton, Observer, Chain-of-command and Strategy) http://www.ibm.com/developerworks/library/os-php-designptrns/