Bug #51462 [Opn->Wfx]: Extending DOM classes work only if copy of object present

Edit report at http://bugs.php.net/bug.php?id=51462&edit=1 ID: 51462 Updated by: rrichards@php.net Reported by: pahan at hubbitus dot info Summary: Extending DOM classes work only if copy of object present -Status: Open +Status: Wont fix Type: Bug Package: DOM XML related Operating System: Linux PHP Version: 5.3.2 New Comment: The tree does not maintain object state. If you are only looking for your own classtypes to be returned by the DOM methods/properties then use registerNodeClass() to register the types. Previous Comments: ------------------------------------------------------------------------ [2010-04-02 12:51:04] pahan at hubbitus dot info Description: ------------ Extending some DOM classes (f.e. DOMDOcument, DOMElement I think others, but not tested) work. But when such elemenmt appended to the document, additional information lost. Meantime, when copy of object saved alsewere, all work as expected. First mention of this bug and initial workaround in comment http://php.net/manual/tr/book.dom.php#80613 by ryoroxdahouse at hotmail dot com. I make automattical workaround like ( http://hinikato.blogspot.com/2009/10/domelement.html? showComment=1270202266600#c284093039037001302 ): class MyElement extends DOMElement { public function __construct($name, $value = null, $uri = null) { parent::__construct($name, $value, $uri); $GLOBALS['PHP_HACK_DOM_ELEMENT'][spl_object_hash($this)] = $this; //Note, reference is not enough :( } public function __destruct() { unset($GLOBALS['PHP_HACK_DOM_ELEMENT'][spl_object_hash($this)]); } } But as we need object copy, not just reference it requires double of memmory! Test script: --------------- <? class MyElement extends DOMElement{} $doc = new DOMDocument(); $doc->appendChild(new MyElement('test')); var_dump($doc->documentElement); ?> Expected result: ---------------- object(MyElement)#4 (0) { } Actual result: -------------- object(DOMElement)#4 (0) { } ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/bug.php?id=51462&edit=1