<?php

class array_iterator implements IteratorAggregate {
        #[ReturnTypeWillChange]
        public function getIterator() {
                return array('foo', 'bar');
        }
}

$obj = new array_iterator;

try
{
    foreach ($obj as $property => $value)
    {
        var_dump($value);
    }
}
catch(Exception $e)
{
    echo $e->getMessage() . "\n";
}
?>