interface/modules/zend_modules/library/Zend/Stdlib/SplStack.php

   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 Serializable;
  13
  14 /**
  15  * Serializable version of SplStack
  16  */
  17 class SplStack extends \SplStack implements Serializable
  18 {
  19     /**
  20      * Serialize to an array representing the stack
  21      *
  22      * @return array
  23      */
  24     public function toArray()
  25     {
  26         $array = array();
  27         foreach ($this as $item) {
  28             $array[] = $item;
  29         }
  30         return $array;
  31     }
  32
  33     /**
  34      * Serialize
  35      *
  36      * @return string
  37      */
  38     public function serialize()
  39     {
  40         return serialize($this->toArray());
  41     }
  42
  43     /**
  44      * Unserialize
  45      *
  46      * @param  string $data
  47      * @return void
  48      */
  49     public function unserialize($data)
  50     {
  51         foreach (unserialize($data) as $item) {
  52             $this->unshift($item);
  53         }
  54     }
  55 }