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<?php
/**
* @version $Id: Collection.php 10831 2013-05-29 19:32:17Z btowles $
* @author RocketTheme http://www.rockettheme.com
* @copyright Copyright (C) 2007 - 2020 RocketTheme, LLC
* @license http://www.gnu.org/licenses/gpl-2.0.html GNU/GPLv2 only
*/
defined('ROKCOMMON') or die;
/**
*
*/
class RokCommon_Collection implements IteratorAggregate, ArrayAccess, Countable
{
/**
* @var array
*/
protected $items = array();
/**
*
*/
public function __construct()
{
}
/**
* @param $item
*/
public function addItem($item)
{
$this->items[] = $item;
}
/**
* @return ArrayIterator
*/
public function getIterator()
{
return new ArrayIterator($this->items);
}
/**
* @param $offset
*
* @return bool
*/
public function offsetExists($offset)
{
return isset($this->items);
}
/**
* @param $offset
* @param $value
*/
public function offsetSet($offset, $value)
{
$this->items[$offset] = $value;
}
/**
* @param $offset
*
* @return mixed
*/
public function offsetGet($offset)
{
return $this->items[$offset];
}
/**
* @param $offset
*/
public function offsetUnset($offset)
{
unset($this->items[$offset]);
}
/**
* @return int|void
*/
public function count()
{
return count($this->items);
}
/**
* @param int $offset
* @param null $length
*
* @return array
*/
public function slice($offset = 0, $length = null)
{
if ($length === null) $length = $this->count();
$classtype = get_class($this);
$output = new $classtype();
$slices = array_slice($this->items, $offset, $length, true);
foreach ($slices as $sliced_item_id => &$sliced_item) {
$output[$sliced_item_id] = $sliced_item;
}
return $output;
}
/**
* @param $length
*
* @return array
*/
public function trim($length)
{
return $this->slice(0, $length);
}
}