/usr/share/php/Horde/Support/Stack.php is in php-horde-support 2.1.5-1ubuntu1.
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/**
* Simple class for using an array as a stack.
*
* Copyright 2008-2016 Horde LLC (http://www.horde.org/)
*
* @category Horde
* @package Support
* @license http://www.horde.org/licenses/bsd
*/
class Horde_Support_Stack
{
/**
* @var array
*/
protected $_stack = array();
public function __construct($stack = array())
{
$this->_stack = $stack;
}
public function push($value)
{
$this->_stack[] = $value;
}
public function pop()
{
return array_pop($this->_stack);
}
public function peek($offset = 1)
{
if (isset($this->_stack[count($this->_stack) - $offset])) {
return $this->_stack[count($this->_stack) - $offset];
} else {
return null;
}
}
}
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