How do I dump the xml I retrieve using PHP FUNCTION DOMXPATH::QUERY?

Hi,

I am trying to extract xml from a file and pass it to the xslt parser but its not working. How do I get the attached code to work?

I need to extract the products node and its children to pass to the stylesheet.

Thanks

<config>
<top40>
<products>
<product>
 ...
</product>
</products>
</config>

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<?php
$doc = new DOMDocument();
$xsl = new XSLTProcessor();

$doc->load('xsl/products.xsl');
$xsl->importStyleSheet($doc);
$doc->load('xml/config.xml');
$xpath = new DOMXPath($doc);
$p = $doc->getElementsByTagName('top40')->item(0);
$x = $xpath->query('*',$p);

$data = $xsl->transformToXML($x);
echo $data;
?>

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