(PHP 5 >= 5.1.2, PHP 7)
SimpleXMLElement::getDocNamespaces — Returns namespaces declared in document
public SimpleXMLElement::getDocNamespaces ([ bool $recursive = false [, bool $from_root = true ]] ) : array
Returns namespaces declared in document
recursive
If specified, returns all namespaces declared in parent and child nodes. Otherwise, returns only namespaces declared in root node.
from_root
Allows you to recursively check namespaces under a child node instead of from the root of the XML doc.
The getDocNamespaces method returns an array of namespace names with their associated URIs.
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"
}
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https://www.php.net/manual/en/simplexmlelement.getdocnamespaces.php