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Bug #19333 incorrect handling of xml namespace
Submitted: 2002-09-10 09:05 UTC Modified: 2002-09-10 23:59 UTC
From: pavlomr at hotmail dot com Assigned:
Status: Closed Package: DOM XML related
PHP Version: 4CVS-2002-09-10 OS: SuSE Linux 7.3
Private report: No CVE-ID: None
View Add Comment Developer Edit
 [2002-09-10 09:05 UTC] pavlomr at hotmail dot com 
environment as in #19266
example:
<?php
$x1="<?xml version='1.0' encoding='iso8859-1' ?>
<root1 xml:lang='de' xmlns:xml='http://www.w3.org/XML/1998/namespace'>
<node xml:lang='en'>1 En node</node>
<node xml:lang='de'>1 De node</node>
<node>1 Default node</node>
</root1>
";
$x2="<?xml version='1.0' encoding='iso8859-1' ?>
<root2 xml:lang='en'  xmlns:xml='http://www.w3.org/XML/1998/namespace'>
<node xml:lang='en'>2 En node</node>
<node xml:lang='de'>2 De node</node>
<node> 2 Default node</node>
</root2>
";
$d1=domxml_open_mem($x1);
$d2=domxml_open_mem($x2);

$r1=$d1->document_element();
$r2=$d2->document_element();
$r1->append_child($r2->clone_node(1));

echo $d1->dump_mem();

?>

produce:
<?xml version="1.0" encoding="iso8859-1"?>
<root1 xml:lang="de">
<node xml:lang="en">1 En node</node>
<node xml:lang="de">1 De node</node>
<node>1 Default node</node>
<root2 lang="en">
<node lang="en">2 En node</node>
<node lang="de">2 De node</node>
<node> 2 Default node</node>
</root2></root1>
------------------------------------
xml prefix of xml:lang is lost !
it's independent from xmlns declaration.

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 [2002-09-10 11:29 UTC] chregu@php.net 
Hi

The Namespace xml is defined per default and does not have to be declared explicitely.

If the parser does not understand this, then it's its fault and it does not correpsond to the w3c-specs.

chregu
 [2002-09-10 12:28 UTC] pavlomr at hotmail dot com 
It is strange , that in previous snapshot (4CVS-2002-09-06) output was correct (but segfaults).
And $d2->dump_mem() produce correct output.
 [2002-09-10 23:59 UTC] chregu@php.net 
Nevertheless it's ok, what domxml (resp. libxml2) does. 
If you take another namespase than xmlns:xml='http://www.w3.org/XML/1998/namespace', you'll see that it will be perfectly preserved. 

The "xml" namespace does not have to be declared, as it's always associated to 'http://www.w3.org/XML/1998/namespace' per default.
 
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