note 106231 added to class.arrayiterator
| From: | Relakuyae at osu1 dot php dot net | Date: | Thu, 20 Oct 2011 00:23:33 +0000 |
| Subject: | note 106231 added to class.arrayiterator | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-184012@lists.php.net to get a copy of this message | ||
Need a callback on an iterated value, but don't have PHP 5.4+? This makes is stupid easy:
class ArrayCallbackIterator extends ArrayIterator {
private $callback;
public function __construct($value, $callback) {
parent::__construct($value);
$this->callback = $callback;
}
public function current() {
$value = parent::current();
return call_user_func($this->callback, $value);
}
}
You can use it pretty much exactly as the Array Iterator:
$iterator1 = new ArrayCallbackIterator($valueList, "callback_function");
$iterator2 = new ArrayCallbackIterator($valueList, array($object,
"callback_class_method"));
----
Server IP: 69.147.83.197
Probable Submitter: 71.227.232.71
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Manual Page -- http://www.php.net/manual/en/class.arrayiterator.php
Edit -- https://master.php.net/note/edit/106231
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Del: useless -- https://master.php.net/note/delete/106231/useless
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Del: non-english -- https://master.php.net/note/delete/106231/non-english
Del: in docs -- https://master.php.net/note/delete/106231/in+docs
Del: other reasons-- https://master.php.net/note/delete/106231
Reject -- https://master.php.net/note/reject/106231
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