IBM:

The introduction of new object-oriented programming (OOP) features in PHP V5 has significantly raised the level of functionality in this programming language. Not only can you have private, protected, and public member variables and functions — just as you would in the Java™, C++, or C# programming languages — but you can also create objects that bend at runtime, creating new methods and member variables on the fly. You can’t do that with the Java, C++, or C# languages.

How many readers are using PHP 5 now in a production environment? We are still using in test environment but getting closer to deploying on a production box.