create xml root-element with xmlns and xsd link (using DOM)

Hi! The XML-Code I have to create (http://news.php.net/php.general/231486), needs a root-element, with xmlns and XML schema link, something like that: <Test xmlns="http://example.com/test" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://example.com/test test.xsd"> Does DOM provide any means to add a XML schema link to the doc? Now I'm doing it this way (which seems to work): <?php $doc = new DOMDocument; $root = $doc->appendChild(new DOMElement('root', NULL, 'http://example.com/test')); $root->setAttributeNS('http://www.w3.org/2001/XMLSchema-instance', 'xsi:schemaLocation', 'http://example.com/test test.xsd'); echo $doc->savexml(); ?> Does DOM provide nothing else? Does anybody see any problems with this approach? Best regards Andreas