PHP getDocNamespaces() Function

Example

Return the namespaces declared in the root of the XML document:

<?php
$xml=<<<XML
<?xml version="1.0" standalone="yes"?>
<cars xmlns:c="http://91xjr.com/ns">
<c:car id="1">Volvo</c:car>
<c:car id="2">BMW</c:car>
<c:car id="3">Saab</c:car>
</cars>
XML;

$sxe=new SimpleXMLElement($xml);
$ns=$sxe->getDocNamespaces();
print_r($ns);
?>

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Definition and Usage

The getDocNamespaces() function returns the namespaces declared in an XML document.

Syntax

SimpleXMLElement::getDocNamespaces( recursive, from_root)

Parameter Values

Parameter	Description
recursive	Optional. Specifies a Boolean value. If TRUE, all namespaces declared in document are returned. If FALSE, only namespaces declared in root node is returned. Default is FALSE
from_root	Optional. Specifies a Boolean value. TRUE checks namespaces from the root of the XML document. FALSE checks namespaces under a child node. Default is TRUE

Technical Details

Return Value:	An array of namespace names with their associated URIs
PHP Version:	5.1.2+
PHP Changelog:	PHP 5.4: The from_root parameter was added

More Examples

Example

Return all namespaces declared in the XML document:

<?php
$xml=<<<XML
<?xml version="1.0" standalone="yes"?>
<cars xmlns:c="http://91xjr.com/ns">
<c:car id="1">Volvo</c:car>
<c:car id="2">BMW</c:car>
<c:car id="3" a:country="Sweden" xmlns:a="http://91xjr.com/country">Saab</c:car>
</cars>
XML;

$sxe=new SimpleXMLElement($xml);
$ns=$sxe->getDocNamespaces(TRUE);
var_dump($ns);
?>

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❮ PHP SimpleXML Reference