How to implement the Iterator interface in PHP?

Question

Please explain with a tiny demo

Answer 1

Here is a great demo showing exactly what to do: http://www.php.net/manual/en/class.iterator.php

Answer 2

Now before you ask this question for each and every available interface, go through:

• http://www.php.net/manual/en/spl.interfaces.php
• http://www.phpro.org/tutorials/Introduction-to-SPL.html
• http://www.phpro.org/tutorials/Introduction-to-SPL-ArrayAccess.html