42 lines
806 B
PHP
42 lines
806 B
PHP
<?php
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/**
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* Simple class for using an array as a stack.
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*
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* Copyright 2008-2017 Horde LLC (http://www.horde.org/)
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*
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* @category Horde
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* @package Support
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* @license http://www.horde.org/licenses/bsd
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*/
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class Horde_Support_Stack
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{
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/**
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* @var array
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*/
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protected $_stack = array();
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public function __construct($stack = array())
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{
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$this->_stack = $stack;
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}
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public function push($value)
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{
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$this->_stack[] = $value;
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}
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public function pop()
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{
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return array_pop($this->_stack);
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}
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public function peek($offset = 1)
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{
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if (isset($this->_stack[count($this->_stack) - $offset])) {
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return $this->_stack[count($this->_stack) - $offset];
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} else {
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return null;
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}
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}
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}
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