Treat a PHP class that implements Iterator as an array

Question

If I have a class that implements the Iterator interface, I can manually control how iteration in a foreach loop. But are there other ways in which

Answer 1

From PHP

Introduction 
Interface for external iterators or objects that can be iterated themselves internally.

As you can see from the interface Table of Contents ¶

Iterator::current — Return the current element
Iterator::key — Return the key of the current element
Iterator::next — Move forward to next element
Iterator::rewind — Rewind the Iterator to the first element
Iterator::valid — Checks if current position is valid

The operation is designed for forward iteration. So reverse would naturally not work and is not designed for this.

For more array-object related interfaces take a look at. ArrayAccess and Countable

For a solution upon a reverse object iterator take a look at the answer here Iterate in reverse through an array with PHP - SPL solution?