Stack.class.php
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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2009 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
namespace Org\Util;
/**
* Stack实现类
*
* @category ORG
* @package ORG
* @subpackage Util
* @author liu21st <liu21st@gmail.com>
*/
class Stack extends ArrayList
{
/**
* 架构函数
*
* @access public
* @param array $values
* 初始化数组元素
*/
public function __construct($values = array())
{
parent::__construct($values);
}
/**
* 将堆栈的内部指针指向第一个单元
*
* @access public
* @return mixed
*/
public function peek()
{
return reset($this->toArray());
}
/**
* 元素进栈
*
* @access public
* @param mixed $value
* @return mixed
*/
public function push($value)
{
$this->add($value);
return $value;
}
}