Bug #52782 [NEW]: DOMDocument subclass forgotten using ->ownerDocument after closure

From: Date: Mon, 06 Sep 2010 13:36:00 +0000
Subject: Bug #52782 [NEW]: DOMDocument subclass forgotten using ->ownerDocument after closure
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-154113@lists.php.net to get a copy of this message
From:             
Operating system: GNU/Linux 2.6.26-2-686 (Debian)
PHP version:      5.3SVN-2010-09-06 (snap)
Package:          DOM XML related
Bug Type:         Bug
Bug description:DOMDocument subclass forgotten using ->ownerDocument after closure

Description:
------------
We have custom XML document and element classes that extend the original
DOMDocument and DOMElement classes for convenience. There is a class that
uses an instance of XmlElement obtained via a callback specified at
construction time. That XmlElement works fine and stays that way. However,
when we get its ownerDocument outside of the closure, the result is not an
XmlDocument but a DOMDocument. I cannot see a single reason why.

I tried several options, and it only seems to happen with that closure. I
have checked versions 5.3.1, 5.3.2, 5.3.3 and now the latest 5.3.4 snapshot
compiled with './configure && make'.

Test script:
---------------
http://codepad.org/hvrNh86K

The original code uses a lot of namespaces and extends XmlDocument, but
this is a much more minimal test case. Also try the "Uncomment this" code
to see what /does/ work.

Expected result:
----------------
*** Calling the callback directly...
dom-fail.php:110: $container: XmlElement: <div id="content"/>
dom-fail.php:111: $container->ownerDocument: XmlDocument; debug:
object(XmlDocument)#2 (0) refcount(1){
}

*** Calling callback from constructor()...
dom-fail.php:110: $container: XmlElement: <div id="content"/>
dom-fail.php:111: $container->ownerDocument: XmlDocument; debug:
object(XmlDocument)#2 (0) refcount(1){
}

*** In constructor, after check on $container:
dom-fail.php:95: $container: XmlElement: <div id="content"/>
dom-fail.php:96: $container->ownerDocument: XmlDocument; debug:
object(XmlDocument)#2 (0) refcount(1){
}

SUCCESS!

Actual result:
--------------
*** Calling the callback directly...
dom-fail.php:110: $container: XmlElement: <div id="content"/>
dom-fail.php:111: $container->ownerDocument: XmlDocument; debug:
object(XmlDocument)#2 (0) refcount(1){
}

*** Calling callback from constructor()...
dom-fail.php:110: $container: XmlElement: <div id="content"/>
dom-fail.php:111: $container->ownerDocument: XmlDocument; debug:
object(XmlDocument)#2 (0) refcount(1){
}

*** In constructor, after check on $container:
dom-fail.php:95: $container: XmlElement: <div id="content"/>
dom-fail.php:96: $container->ownerDocument: DOMDocument; debug:
object(DOMDocument)#2 (0) refcount(1){
}

PHP Fatal error:  Call to undefined method DOMDocument::append() in
/home/jmoe/fuckingpieceofshitfuckfuckfucksocks/dom-fail.php on line 100


-- 
Edit bug report at http://bugs.php.net/bug.php?id=52782&edit=1
-- 
Try a snapshot (PHP 5.2):            http://bugs.php.net/fix.php?id=52782&r=trysnapshot52
Try a snapshot (PHP 5.3):            http://bugs.php.net/fix.php?id=52782&r=trysnapshot53
Try a snapshot (trunk):              http://bugs.php.net/fix.php?id=52782&r=trysnapshottrunk
Fixed in SVN:                        http://bugs.php.net/fix.php?id=52782&r=fixed
Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=52782&r=needdocs
Fixed in release:                    http://bugs.php.net/fix.php?id=52782&r=alreadyfixed
Need backtrace:                      http://bugs.php.net/fix.php?id=52782&r=needtrace
Need Reproduce Script:               http://bugs.php.net/fix.php?id=52782&r=needscript
Try newer version:                   http://bugs.php.net/fix.php?id=52782&r=oldversion
Not developer issue:                 http://bugs.php.net/fix.php?id=52782&r=support
Expected behavior:                   http://bugs.php.net/fix.php?id=52782&r=notwrong
Not enough info:                     http://bugs.php.net/fix.php?id=52782&r=notenoughinfo
Submitted twice:                     http://bugs.php.net/fix.php?id=52782&r=submittedtwice
register_globals:                    http://bugs.php.net/fix.php?id=52782&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=52782&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=52782&r=dst
IIS Stability:                       http://bugs.php.net/fix.php?id=52782&r=isapi
Install GNU Sed:                     http://bugs.php.net/fix.php?id=52782&r=gnused
Floating point limitations:          http://bugs.php.net/fix.php?id=52782&r=float
No Zend Extensions:                  http://bugs.php.net/fix.php?id=52782&r=nozend
MySQL Configuration Error:           http://bugs.php.net/fix.php?id=52782&r=mysqlcfg



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