php.net |  support |  documentation |  report a bug |  advanced search |  search howto |  statistics |  random bug |  login

go to bug id or search bugs for

Bug #47430 Errors after writing to nodeValue parameter of an absent previousSibling
Submitted: 2009-02-17 23:01 UTC Modified: 2009-03-13 13:45 UTC
From: bisyarin at ukr dot net Assigned: rrichards (profile)
Status: Closed Package: Scripting Engine problem
PHP Version: 5.2CVS-2009-02-17 (snap) OS: *
Private report: No CVE-ID: None
View Developer Edit
Welcome back! If you're the original bug submitter, here's where you can edit the bug or add additional notes.
If you forgot your password, you can retrieve your password here.
Password:
Status:
Package:
Bug Type:
Summary:
From: bisyarin at ukr dot net
New email:
PHP Version: OS:

 

 [2009-02-17 23:01 UTC] bisyarin at ukr dot net 
Description:
------------
In one of my project's libraries I've forgot to check DOMNode's "previousSibling" property for existence by accident. I think that DOM extension should handle such situations gracefully. But after that, when I try to create an array by assigning a value to unexistent key with square bracket syntax, I get an error message:
PHP Fatal error:  Cannot use object of type stdClass as array in /xxx/yyy.php on line ZZZ

Reproduce code:
---------------
$xml = '<?xml version="1.0"?><html><p><i>Hello</i></p><p><i>World!</i></p></html>';
$dom = new DOMDocument();
$dom->loadXML($xml);

$elements = $dom->getElementsByTagName('i');
foreach ($elements as $i) {
  $i->previousSibling->nodeValue = '';
}

$arr[0] = 'Value';

print_r($arr);

Expected result:
----------------
Array
(
    [0] => Value
)


Actual result:
--------------
PHP Fatal error:  Cannot use object of type stdClass as array in /usr/home/artem/comps/scripts/test.php on line 20

Patches

Pull Requests

History

AllCommentsChangesGit/SVN commitsRelated reports
 [2009-02-17 23:54 UTC] jani@php.net 
Please try using this CVS snapshot:

  http://snaps.php.net/php5.2-latest.tar.gz
 
For Windows:

  http://windows.php.net/snapshots/
 [2009-02-18 00:39 UTC] bisyarin at ukr dot net 
I've tried PHP 5.2.9RC3-dev on windows and FreeBSD and still the same.

Output from my win-machine:
version:
PHP 5.2.9RC3-dev (cli) (built: Feb 17 2009 23:39:59) 

Error message:
PHP Fatal error:  Cannot use object of type stdClass as array in D:\artem\phpDOMBagTest.php on line 19

Output from my FreeBSD machine:
version:
PHP 5.2.9RC3-dev (cli) (built: Feb 18 2009 02:14:56)

Error message:
Fatal error: Cannot use object of type stdClass as array in /usr/home/artem/comps/scripts/phpDOMBagTest.php on line 19
 [2009-02-18 23:47 UTC] felipe@php.net 
I can reproduce it using 5.3CVS.
 [2009-02-20 23:48 UTC] felipe@php.net 
The problem is the 'retval = EG(uninitialized_zval_ptr);' in dom_read_property(), I guess that maybe would be more suitable throw an E_RECOVERABLE_ERROR there.

Assigned to maintainer.
 [2009-03-13 13:45 UTC] rrichards@php.net 
This bug has been fixed in CVS.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
 
Thank you for the report, and for helping us make PHP better.
 
PHP Copyright © 2001-2025 The PHP Group
All rights reserved. 		Last updated: Sat Feb 01 13:01:29 2025 UTC