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

In the case of the static method, PHP has to check wether the method can or cannot be called from the calling context (public, protected, private). That's most likely what causes the overhead, or at least part of it, since the classic function call doesn't require PHP to perform that kind of check.