RocketInABog's seemingly trivial tIterator_array class has one huge problem (which just cost me a couple of hours).
Consider this example, using their class:
<?php
$values = ['one', 'two', 'three'];
foreach ($values as $v) {}
$current = current($values);
$iterator = new tIterator_array($values);
foreach ($iterator as $v) {}
$current = $iterator->current(); ?>
The problem is that foreach resets arrays, but doesn't call Iterator::rewind on objects!
I also think it's a design mistake that foreach works with Iterator, but current(), key() and end() don't - these iterate over the objects fields.
I just refactored some code to use an Iterator instead of an array, and it broke in several very unexpected ways because of these differences.
