Bug #71993 [Opn->Nab]: DOMDocument::loadHTML ignores anything after a null byte
Edit report at https://bugs.php.net/bug.php?id=71993&edit=1
ID: 71993
Updated by: ab@php.net
Reported by: raul at raulr dot net
Summary: DOMDocument::loadHTML ignores anything after a null
byte
-Status: Open
+Status: Not a bug
Type: Bug
Package: DOM XML related
Operating System: Linux
PHP Version: 7.0.5
Block user comment: N
Private report: N
New Comment:
Thanks for the report. The input comes as a binary safe string in PHP, then we reevaluate it using
xmlStrlen(). But even without it, libxml2 will retain same behavior just silently stopping. Thus it
is not a bug in PHP, this should be reevaluated once libxml2 has a better HTML5support. Please see
also this couple of links
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=574104
https://mail.gnome.org/archives/xml/2008-August/msg00008.html
Thanks.
Previous Comments:
------------------------------------------------------------------------
[2016-04-08 19:18:35] raul at raulr dot net
Description:
------------
DOMDocument::loadHTML() stops processing the source string after a null byte (U+0000) without
issuing any exception or warning.
I have tested that this happens in PHP versions 5.5.34, 5.6.20 and 7.0.5.
Test script:
---------------
<?php
$html = <<<EOD
<!DOCTYPE html>
<html>
<div>Pre NULL byte</div>
\0
<div>Post NULL byte</div>
</html>
EOD;
$dom = new \DOMDocument('1.0');
$dom->validateOnParse = true;
$dom->loadHTML($html);
echo $dom->saveHTML();
Expected result:
----------------
<!DOCTYPE html>
<html><body><div>Pre NULL byte</div>
<div>Post NULL byte</div>
</body></html>
Actual result:
--------------
<!DOCTYPE html>
<html><body><div>Pre NULL byte</div></body></html>
------------------------------------------------------------------------
--
Edit this bug report at https://bugs.php.net/bug.php?id=71993&edit=1
Thread (2 messages)