Php type hinting not getting along with interfaces and abstract classes?

Question

I think it\'ll be much easier to see the problem in a code example than writing the question in the first place. Here is my php code:

Answer 1

Does not compute. We had the same discussion yesterday:
Can parameter types be specialized in PHP

All your derived classes must implement the method signatures identically.

This is something that would ideally be checked at runtime. But in PHP the parser does. (To compensate, PHP does not check private/protected attribute access at parsing time, but let that one rather blow up at runtime.)

If you want to enforce a more stringent type, I would advise:

 assert( is_a($Object, "AClass") );