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   1  <?php
   2  /**
   3   * Zend Framework (http://framework.zend.com/)
   4   *
   5   * @link      http://github.com/zendframework/zf2 for the canonical source repository
   6   * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
   7   * @license   http://framework.zend.com/license/new-bsd New BSD License
   8   */
   9  
  10  namespace Zend\Stdlib;
  11  
  12  use ArrayIterator;
  13  use ArrayObject as PhpArrayObject;
  14  
  15  /**
  16   * ArrayObject that acts as a stack with regards to iteration
  17   */
  18  class ArrayStack extends PhpArrayObject
  19  {
  20      /**
  21       * Retrieve iterator
  22       *
  23       * Retrieve an array copy of the object, reverse its order, and return an
  24       * ArrayIterator with that reversed array.
  25       *
  26       * @return ArrayIterator
  27       */
  28      public function getIterator()
  29      {
  30          $array = $this->getArrayCopy();
  31          return new ArrayIterator(array_reverse($array));
  32      }
  33  }