PHP getDocNamespaces() function

Example

Returns the namespace declared in the root node of the XML document:

<?php$xml=<<<XML<?xml version="1.0" standalone="yes"?><cars xmlns:c="http://w3cschool.cc/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);?>

Definition and usage

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

grammar

 getDocNamespaces( recursive , from_root );

parameter	describe
recursive	Optional. Specifies a boolean value. If TRUE, returns all namespaces declared in all parent and child nodes. If the value is FALSE, only namespaces declared in the root node are returned. The default is FALSE.
from_root	Optional. Specifies a boolean value. If the value is TRUE, the namespace in the root node of the XML document is checked. If the value is FALSE, the namespace under the child node is checked. Default is TRUE.

technical details

Return value:	Returns an array of namespace names with associated URIs.
PHP version:	5.1.2+
PHP change log:	PHP 5.4: Added from_root parameter.

More examples

Example 1

Returns all namespaces declared in the parent and child nodes of the XML document:

<?php$xml=<<<XML<?xml version="1.0" standalone="yes"?><cars xmlns:c="http://w3cschool.cc/ns"> <c:car id=" 1">Volvo</c:car> <c:car id="2">BMW</c:car> <c:car id="3" a:country="Sweden" xmlns:a="http://w3cschool.cc/country">Saab</c:car> </cars>XML;$sxe=new SimpleXMLElement($xml);$ns=$sxe->getDocNamespaces(TRUE) ;var_dump($ns);?>