Performance of static methods vs. functions

Question

In PHP, (unlike what I originally thought) there is an overhead of calling static methods vs simple functions.

On a very simple bench, the overhead is over 30% of th

Answer 1

Apparently this point has been fixed in later versions of PHP (5.5.12).

I ran the OP's code (with empty methods), and I get these results :

Static Time:   1.0153820514679 ms
Object Time:   1.100515127182 ms

Edit: Eight months and some releases later...

It's interesting to see how Zend and the community are working hard on PHP's performance.