displaying Simple XML php - php

Question

I am looking for something equivalent to this:
$e= xmlwriter_open_uri("test.xml");
....
print htmlentities(xmlwriter_output_memory($e));
now this print allows to display whats in the xml list into a table.
But my with my simple xml (combined with $dom for formatting) i have no idea how to display this. Although this generates the proper output i wish into the xml how do i display the xml below? Something similar to a print or?
The purpose is to display the values of the xml into a table.
$dom = new DOMDocument('1.0');
$dom->preserveWhiteSpace = false;
$dom->formatOutput = true;
$xml = new SimpleXMLElement('<test></test>');
$one= $xml->addChild('enemy', 'yes');
$two= $xml->addChild('friend', 'maybe');
$dom->loadXML($xml->asXML());
$dom->save('test.xml');
Regards

Answer 1

You don't need to stringify (technical term!) the SimpleXMLElement to load it into a DOMDocument, in fact that's a terrible idea (though, you're forgiven).
$xml = new SimpleXMLElement('<test></test>');
$one= $xml->addChild('enemy', 'yes');
$two= $xml->addChild('friend', 'maybe');
// Get the DOMDocument associated with this XML
$dom = dom_import_simplexml($xml)->ownerDocument;
$dom->preserveWhiteSpace = false;
$dom->formatOutput = true;
echo $dom->saveXML(); // or echo htmlentities($dom->saveXML()) if you really must
More info about retrieving a DOMElement (and its DOMDocument) from a SimpleXMLElement can be found in the docs for dom_import_simplexml().