SimpleXMLElement::getDocNamespaces
(PHP 5 >= 5.1.2, PHP 7, PHP 8)
SimpleXMLElement::getDocNamespaces — Returns namespaces declared in document
Description
public SimpleXMLElement::getDocNamespaces(bool
$recursive = false, bool $fromRoot = true): array|falseReturns namespaces declared in document
Parameters
-
recursive -
If specified, returns all namespaces declared in parent and child nodes. Otherwise, returns only namespaces declared in root node.
-
fromRoot -
Allows you to recursively check namespaces under a child node instead of from the root of the XML doc.
Return Values
The getDocNamespaces method returns an array
of namespace names with their associated URIs.
Examples
Example #1 Get document namespaces
<?php
$xml = <<<XML
<?xml version="1.0" standalone="yes"?>
<people xmlns:p="http://example.org/ns">
<p:person id="1">John Doe</p:person>
<p:person id="2">Susie Q. Public</p:person>
</people>
XML;
$sxe = new SimpleXMLElement($xml);
$namespaces = $sxe->getDocNamespaces();
var_dump($namespaces);
?>
The above example will output:
array(1) {
["p"]=>
string(21) "http://example.org/ns"
}
Example #2 Working with multiple namespaces
<?php
$xml = <<<XML
<?xml version="1.0" standalone="yes"?>
<people xmlns:p="http://example.org/ns" xmlns:t="http://example.org/test">
<p:person t:id="1">John Doe</p:person>
<p:person t:id="2" a:addr="123 Street" xmlns:a="http://example.org/addr">
Susie Q. Public
</p:person>
</people>
XML;
$sxe = new SimpleXMLElement($xml);
$namespaces = $sxe->getDocNamespaces(TRUE);
var_dump($namespaces);
?>
The above example will output:
array(3) {
["p"]=>
string(21) "http://example.org/ns"
["t"]=>
string(23) "http://example.org/test"
["a"]=>
string(23) "http://example.org/addr"
}
See Also
- SimpleXMLElement::getNamespaces() - Returns namespaces used in document
- SimpleXMLElement::registerXPathNamespace() - Creates a prefix/ns context for the next XPath query
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