1: <?php
2:
3: /**
4: * This file is part of the Nette Framework (http://nette.org)
5: *
6: * Copyright (c) 2004 David Grudl (http://davidgrudl.com)
7: *
8: * For the full copyright and license information, please view
9: * the file license.txt that was distributed with this source code.
10: */
11:
12: namespace Nette\Iterators;
13:
14: use Nette;
15:
16:
17:
18: /**
19: * Callback iterator filter.
20: *
21: * @author David Grudl
22: */
23: class Filter extends \FilterIterator
24: {
25: /** @var callback */
26: private $callback;
27:
28:
29: /**
30: * Constructs a filter around another iterator.
31: * @param
32: * @param callback
33: */
34: public function __construct(\Iterator $iterator, $callback)
35: {
36: parent::__construct($iterator);
37: $this->callback = $callback;
38: }
39:
40:
41:
42: public function accept()
43: {
44: return call_user_func($this->callback, $this);
45: }
46:
47: }
48: