#33450 [Opn->Bgs]: DOMNodes forget their class

ID: 33450 Updated by: rrichards@php.net Reported By: arendjr at gmail dot com -Status: Open +Status: Bogus Bug Type: Zend Engine 2 problem Operating System: Linux PHP Version: 5.0.4 New Comment: Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php This has been covered many. Its all due to scope as your call creates the object and its immediately destroyed since its never returned. The tree does NOT persists objects (variables) that have been destroyed. Use $widget = $body->appendChild(new Widget()); Previous Comments: ------------------------------------------------------------------------ [2005-06-23 11:57:16] arendjr at gmail dot com Just tried it, but it gives exactly the same result. ------------------------------------------------------------------------ [2005-06-23 11:41:04] sniper@php.net Please try using this CVS snapshot: http://snaps.php.net/php5-latest.tar.gz For Windows: http://snaps.php.net/win32/php5-win32-latest.zip ------------------------------------------------------------------------ [2005-06-23 11:36:09] arendjr at gmail dot com Description: ------------ Whenever I create a class which inherits DOMElement, and I create an instance of this class, the type of the class is "forgotten" when the variable holding the instance goes out of scope, even though the actual instance should still exist as it is part of the DOM tree. So, what you get is that the inherited DOMElement still exists in the DOM tree, but the subclass instance is gone. Reproduce code: --------------- <?php class Widget extends DOMElement { public function __construct() { parent::__construct('p'); } public function say() { echo "I am a widget!\n"; } } $doc = new DOMDocument(); $doc->appendChild($html = new DOMElement('html')); $html->appendChild($body = new DOMElement('body')); $body->appendChild(new Widget()); $body->firstChild->say(); ?> Expected result: ---------------- It should say: "I am a widget!". You can get this expected result by changing the line: $body->appendChild(new Widget()); to: $body->appendChild($widget = new Widget()); this way, the widget will not get out of scope and the actual class is remembered. Actual result: -------------- You will get an error saying: "Fatal error: Call to undefined method DOMElement::say() in testcase.php on line 17" ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=33450&edit=1