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<?php

declare(strict_types=1);

namespace Laminas\Stdlib;

use ArrayIterator;
use ArrayObject as PhpArrayObject;
use ReturnTypeWillChange;

use function array_reverse;

/**
 * ArrayObject that acts as a stack with regards to iteration
 *
 * @template TKey of array-key
 * @template TValue
 * @template-extends PhpArrayObject<TKey, TValue>
 */
class ArrayStack extends PhpArrayObject
{
    /**
     * Retrieve iterator
     *
     * Retrieve an array copy of the object, reverse its order, and return an
     * ArrayIterator with that reversed array.
     *
     * @return ArrayIterator<TKey, TValue>
     */
    #[ReturnTypeWillChange]
    public function getIterator()
    {
        $array = $this->getArrayCopy();
        return new ArrayIterator(array_reverse($array));
    }
}