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Bug #39662 Segfault when calling asXML() of a cloned SimpleXMLElement
Submitted: 2006-11-28 16:16 UTC Modified: 2006-11-28 18:59 UTC
Votes:2
Avg. Score:4.0 ± 1.0
Reproduced:2 of 2 (100.0%)
Same Version:0 (0.0%)
Same OS:0 (0.0%)
From: alexiev at gmail dot com Assigned: tony2001
Status: Closed Package: SimpleXML related
PHP Version: 5.2.0 OS: Debian Unstable 2.6.16-2-686
Private report: No CVE-ID:
 [2006-11-28 16:16 UTC] alexiev at gmail dot com
Description:
------------
When calling asXML() to a cloned element, the php segfaults. I've got no debug information, but the bug is easy to reproduce. I had this problem with PHP 5.2.0 and PHP 5.1.6. With PHP 5.1.2 everything is OK. 

The xml file is just an example - this happens with every xml file I tried!

Reproduce code:
---------------
alexiev-home:~/tests# cat SimpleXML.xml
<?xml version="1.0" encoding="utf-8" ?>
<test>

</test>
alexiev-home:~/tests# cat SimpleXML.php
<?php
$root = simplexml_load_file('SimpleXML.xml');
$clone = clone $root;
var_dump($root);
var_dump($clone);
echo $clone->asXML(); // Segfault here
?>


Expected result:
----------------
object(SimpleXMLElement)#1 (1) {
  [0]=>
  string(2) "

"
}
object(SimpleXMLElement)#2 (1) {
  [0]=>
  string(2) "

"
}
string(55) "<?xml version="1.0" encoding="utf-8"?>
<test>

</test>
"


Actual result:
--------------
object(SimpleXMLElement)#1 (1) {
  [0]=>
  string(2) "

"
}
object(SimpleXMLElement)#2 (1) {
  [0]=>
  string(2) "

"
}
Segmentation fault


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 [2006-11-28 18:59 UTC] tony2001@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/.
 
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