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Bug #37035 Fail to produce a SimpleXML Object with namespace in root element
Submitted: 2006-04-10 23:13 UTC Modified: 2006-04-14 15:33 UTC
From: mir at datanom dot net Assigned: helly (profile)
Status: Closed Package: SimpleXML related
PHP Version: 5.1.2 OS: *
Private report: No CVE-ID: None
View Add Comment Developer Edit
 [2006-04-10 23:13 UTC] mir at datanom dot net 
Description:
------------
Given this xml document simplexml_load_string and simplexml_load_file returns false

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<soap:Body> 
<businessList 
	generic="2.0" operator="ms.com" truncated="false" 
	xmlns="urn:uddi-org:api_v2"> 
<businessInfos> 
<businessInfo		businessKey="c13cc7b2-642d-41d0-b2dd-7bb531a18997">
<name xml:lang="en">Microsoft DRMS Dev</name> 
<serviceInfos>
<serviceInfo 
serviceKey="6166f8b2-436d-4001-9f68-f37ff8b47ea3" 
businessKey="c13cc7b2-642d-41d0-b2dd-7bb531a18997">
<name xml:lang="en">Certification</name>
</serviceInfo> 
</serviceInfos> 
</businessInfo>
</businessInfos>
</businessList>
</soap:Body> 
</soap:Envelope>

If I erase namespace references from the root element a valid simpleXML object is returned:

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope>
<soap:Body> 
<businessList 
	generic="2.0" operator="ms.com" truncated="false" 
	xmlns="urn:uddi-org:api_v2"> 
<businessInfos> 
<businessInfo		businessKey="c13cc7b2-642d-41d0-b2dd-7bb531a18997">
<name xml:lang="en">Microsoft DRMS Dev</name> 
<serviceInfos>
<serviceInfo 
serviceKey="6166f8b2-436d-4001-9f68-f37ff8b47ea3" 
businessKey="c13cc7b2-642d-41d0-b2dd-7bb531a18997">
<name xml:lang="en">Certification</name>
</serviceInfo> 
</serviceInfos> 
</businessInfo>
</businessInfos>
</businessList>
</soap:Body> 
</soap:Envelope>

Reproduce code:
---------------
class xmlParser
{
	private $document;

	public function __construct($xml)
	{
	$this->document =                              simplexml_load_string((string)$xml);
	if (!$this->document)
		throw new xmlParserException("The XML document is not well-formed: \n" . $xml);
	}
}

Expected result:
----------------
A SimpleXML Object

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 [2006-04-12 12:57 UTC] mir at datanom dot net 
Forgot to provide a simple example:

<?php
//    xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" 
//    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
//    xmlns:xsd="http://www.w3.org/2001/XMLSchema"
$xml = <<<_XML
<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope>
<soap:Body> 
<businessList 
    generic="2.0" operator="ms.com" truncated="false" 
    xmlns="urn:uddi-org:api_v2"> 
<businessInfos> 
    <businessInfo businessKey="c13cc7b2-642d-41d0-b2dd-7bb531a18997">
	<name xml:lang="en">Microsoft DRMS Dev</name> 
	<serviceInfos>
	    <serviceInfo 
		serviceKey="6166f8b2-436d-4001-9f68-f37ff8b47ea3" 
		businessKey="c13cc7b2-642d-41d0-b2dd-7bb531a18997">
		<name xml:lang="en">Certification</name>
	    </serviceInfo> 
	</serviceInfos> 
    </businessInfo>
</businessInfos>
</businessList>
</soap:Body> 
</soap:Envelope>
_XML;

$document = simplexml_load_string($xml);
if (!$document)
    echo "Failed to parse document!\n";
else
    print_r($document);
?>

This example works. Adding the 3 uncommented namespace declarations to the root element will make simplexml_load_string return false.
 [2006-04-12 13:06 UTC] mir at datanom dot net 
Had a wild idea which seems to prove something noticeable.
Study the example below which works:

<?php
//    xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" 
//    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
//    xmlns:xsd="http://www.w3.org/2001/XMLSchema"
$xml = <<<_XML
<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<soap:Body> 
<businessList 
    generic="2.0" operator="ms.com" truncated="false" 
    xmlns="urn:uddi-org:api_v2"> 
<businessInfos> 
    <businessInfo businessKey="c13cc7b2-642d-41d0-b2dd-7bb531a18997">
	<name xml:lang="en">Microsoft DRMS Dev</name> 
	<serviceInfos>
	    <serviceInfo 
		serviceKey="6166f8b2-436d-4001-9f68-f37ff8b47ea3" 
		businessKey="c13cc7b2-642d-41d0-b2dd-7bb531a18997">
		<name xml:lang="en">Certification</name>
	    </serviceInfo> 
	</serviceInfos> 
    </businessInfo>
</businessInfos>
</businessList>
</soap:Body> 
</soap:Envelope>
_XML;

$document = simplexml_load_string($xml);
if (!$document)
    echo "Failed to parse document!\n";
else
    print_r($document);
?>

Apparently simplexml_load_string does not like namespace references in an element if this same element is extended from that same namespace.
 [2006-04-14 15:33 UTC] helly@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/.
 
Thank you for the report, and for helping us make PHP better.

You need $sxe->children($ns) / attributes($ns)

where either $ns is the URI of your namespace or NULL if you want to access non namespaced children/attributes. SXE objects do not allow changing the namespace by property or array access.

In HEAD we now have the ability to also access the root element with specific namespace.
 
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