In this new post to his blog Timothy Boronczyk has a few suggestions about what's wrong with the current implementation of object oriented programming in most languages (including PHP).

Proponents of Object Oriented Programming feel the paradigm yields code that is better organized, easier to understand and maintain, and reusable. [...] If objects truly model the way people think of things in the real world, then why do people have a hard time understanding and working in OOP? I suspect the problem might be the focus on objects instead of actions.

He goes on to explain that, in his opinion, the functionality would be more understandable if it focused on the actions from the user's point of view rather than what the object itself can do.

The way some OOP languages (like Java and C#) force objects on the programmer borders on the absurd. [...] Sadly though, that decision isn't left to the programmer who has been tasked with developing and maintaining a system.