#45996 [Asn]: libxml2 2.7.1 causes breakage with character data in xml_parse()

From: Date: Wed, 31 Dec 2008 15:22:17 +0000
Subject: #45996 [Asn]: libxml2 2.7.1 causes breakage with character data in xml_parse()
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-132453@lists.php.net to get a copy of this message 
 ID:               45996
 Updated by:       scottmac@php.net
 Reported By:      phpbugs at colin dot guthr dot ie
 Status:           Assigned
 Bug Type:         XML related
 Operating System: Mandriva Linux
 PHP Version:      5.2.6
 Assigned To:      rrichards
 New Comment:

Guys please READ the report, this is a bug in libxml NOT a bug in PHP.


Previous Comments:
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[2008-12-31 14:35:13] hougiwro at guerrillamail dot org

Why not just fix the bug so that existing installs can pick up a
standard update without having to rebuild the program.

Not everyone using PHP is necessarily comfortable with recompiling it
in order to implement a workaround for a bug.

------------------------------------------------------------------------

[2008-12-31 13:37:17] phpbugs at colin dot guthr dot ie

If you are on a shared host with a fixed PHP version then really the
host should be responsible for deploying a well packaged version of PHP.
If they are not doing that it is the host that is at fault and you
should raise the issue with them.

------------------------------------------------------------------------

[2008-12-31 00:56:58] mark at mcclusky dot com

I understand that there are workarounds to this bug, but for those of
us on shared hosts that we can't recompile, this is a colossally
frustrating state of affairs.

Does anyone in PHP land have any timeline for a fix?

------------------------------------------------------------------------

[2008-12-29 17:02:44] jeffrey dot roberts at ibsgroup dot org

For those as challenged as me at determining how to either downgrade
libxml2 or recompile with libexpat while using cPANEL (easyapache), here
is a link to the details.  I confirm that after recompiling it is a
workaround for the problem.

http://blog.code-head.com/fixing-libxml-php-bug-and-issues-with-html-entities-libexpat

First you will need to find out where libexpat is located on your
server, it¡¯s probably here:
/usr/lib

To find out for sure, open this folder (/usr/lib) and look for the
file:
libexpat.so

If you can¡¯t find it, log in as root via SSH and enter:
whereis libexpat.so

This should list the folder in which libexpat is located.

After all this you will need to compile PHP to use libexpat instead of
libxml, so go to:
/var/cpanel/easy/apache/rawopts/

And create a file and name it ¡°all_php5¡å (no quotes), if there is a
file with this name edit it and add these lines to the end of it:
¨Cwith-expat=builtin
¨Cwith-libexpat-dir=/usr/lib

(lines start with two dashes ¡°-¡± that are not showing up here for
some reason)
Remember that depending on where libexpat is located on your server you
might need to edit the second line.

Now compile Apache and everything should work fine!

------------------------------------------------------------------------

[2008-12-28 13:37:13] phpbugs at colin dot guthr dot ie

While I do not doubt that this is an annoying bug, there are very
simple and clear workarounds. I'm really not seeing why everyone is so
upset about this. I reported the bug and we fixed the Mandriva package
almost immediately with the work around and I'm not aware of any fallout
from that change.

------------------------------------------------------------------------

The remainder of the comments for this report are too long. To view
the rest of the comments, please view the bug report online at
    http://bugs.php.net/45996

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Edit this bug report at http://bugs.php.net/?id=45996&edit=1

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