[blakeperdue]

Are these numbers based on most previous versions of PHP? I'm on 5.3.10, do you think if I upgraded I would see similar improvements?

[smsm42]

Yes, most probably you will see significant improvements. Of course, it depends on your app - if your app spends 99% of time in SQL database calls, PHP can do nothing about it. But PHP part would be faster and take less memory.

[tomcorrigan]

In a word: Yes. Of course, depending on your app YMMV!