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://w3schools.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
getDocNamespaces(recursive,from_root);
| Parameter | Description |
|---|---|
| recursive | Optional. Specifies a Boolean value. If TRUE, all namespaces declared in parent and child nodes are returned. If FALSE, only namespaces declared in root node is returned. Default is FALSE |
| from_root | Optional. Specifies a Boolean value. TRUE check namespaces from the root of the XML doc. FALSE check namespaces under a child node. Default is TRUE |
Technical Details
| Return Value: | Returns 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 1
Return all namespaces declared in parent and child nodes of the XML document:
<?php
$xml=<<<XML
<?xml version="1.0" standalone="yes"?>
<cars
xmlns:c="http://w3schools.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://w3schools.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
