PHP Interfaces: How are they usable in practice?

Question

I\'ll start by saying that I know how PHP interfaces work and how to \"use\" them.

My question is rather; how do they become useful in real life applications?

<

Answer 1

Check out the Standard PHP Library (SPL) http://php.net/manual/en/book.spl.php

Countable and RecursiveIterator might give you a clue.