Just wondering if anyone is using php6 already. What new cool features do you like in php6, can you shared some new code examples from the new built in classes?

I personally have not tried it yet, only got to php5.2.9 and thinking to upgrade to 5.3 soon and the main reason for upgrading to 5.3 would be the new bult-in Internationalization extension. It really looks very useful.

Also I like that that fileinfo extension is finally included by default in 5.3

That's about all, and maybe the SPL object storage, but I have not thought of any situation where object storage would be useful.