From:             phpbug at drque dot net
Operating system: Linux; Debian kernel 2.6.8-3-k7
PHP version:      5.1.4
PHP Bug Type:     XML related
Bug description:  DOM Segmentation fault when changing "firstChild->data"

Description:
------------
Tricky bug: if you run the example, you get a segmentation fault.  If you
change the line:
  $Data = $body->appendChild( $dom->createElement( 'Data', '123' ) );
to
  $Data = $body->appendChild( $dom->createElement( 'Data', '1234' ) );

The script executes as expected.  It seems that as long as the data in the
field is 4 characters or more, everything runs as expected.  However, if
the data is less then 4 characters, attempting to change it causes a
segmentation fault, every time.

I've tried this code and get the error with versions 5.1.3, 5.1.4 and the
6/14/2006 snapshot of 6.0.0.


Reproduce code:
---------------
<?php

// Create some XML
$dom = new DOMDocument('1.0');
$dom->formatOutput = true;
$body = $dom->appendChild( $dom->createElement( 'Body' ) );
$Data = $body->appendChild( $dom->createElement( 'Data', '123' ) );
$dom->save( 'Data.xml' );


// Atempt to load and change XML file
$NewDOM = new DOMDocument('1.0');
$NewDOM->load( 'Data.xml' );

$Data = $NewDOM->getElementsByTagName( 'Data' )->item( 0 );
$Data->firstChild->data = 2;
$NewDOM->save( 'Data.xml' );


?> 

Expected result:
----------------
Data.xml should be:
<?xml version="1.0"?>
<Body>
  <Data>2</Data>
</Body>


Actual result:
--------------
Segmentation fault

-- 
Edit bug report at http://bugs.php.net/?id=37809&edit=1
-- 
Try a CVS snapshot (PHP 4.4): 
http://bugs.php.net/fix.php?id=37809&r=trysnapshot44
Try a CVS snapshot (PHP 5.2): 
http://bugs.php.net/fix.php?id=37809&r=trysnapshot52
Try a CVS snapshot (PHP 6.0): 
http://bugs.php.net/fix.php?id=37809&r=trysnapshot60
Fixed in CVS:                 http://bugs.php.net/fix.php?id=37809&r=fixedcvs
Fixed in release:             
http://bugs.php.net/fix.php?id=37809&r=alreadyfixed
Need backtrace:               http://bugs.php.net/fix.php?id=37809&r=needtrace
Need Reproduce Script:        http://bugs.php.net/fix.php?id=37809&r=needscript
Try newer version:            http://bugs.php.net/fix.php?id=37809&r=oldversion
Not developer issue:          http://bugs.php.net/fix.php?id=37809&r=support
Expected behavior:            http://bugs.php.net/fix.php?id=37809&r=notwrong
Not enough info:              
http://bugs.php.net/fix.php?id=37809&r=notenoughinfo
Submitted twice:              
http://bugs.php.net/fix.php?id=37809&r=submittedtwice
register_globals:             http://bugs.php.net/fix.php?id=37809&r=globals
PHP 3 support discontinued:   http://bugs.php.net/fix.php?id=37809&r=php3
Daylight Savings:             http://bugs.php.net/fix.php?id=37809&r=dst
IIS Stability:                http://bugs.php.net/fix.php?id=37809&r=isapi
Install GNU Sed:              http://bugs.php.net/fix.php?id=37809&r=gnused
Floating point limitations:   http://bugs.php.net/fix.php?id=37809&r=float
No Zend Extensions:           http://bugs.php.net/fix.php?id=37809&r=nozend
MySQL Configuration Error:    http://bugs.php.net/fix.php?id=37809&r=mysqlcfg

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