XML : Sending form data to XML

I'm having trouble with simpleXML. When I send form information to the XML document it just stays on the same line in the XML document. I thinks its something to with creating a new Element but i'm lost :). I want the form tag as the root and person tag as the child of the root and the others the children of person Have a look below. Thanks.

XML code is below:

  <?xml version="1.0"?>  <?xml-stylesheet href="form.xsl" type="text/xsl"?>  <form>  <person><name>help</name><favteam>help</favteam><winner>help</winner></form>    

PHP Code is below:

      $xml = simplexml_load_file('form.xml');        $xmlFormat = $xml->asXML();        $newChild = $xml->addChild('person');      $newChild->addChild('name', $name);      $newChild->addChild('favteam', $name);      $newChild->addChild('winner', $name);      $newChild->addChild('comment', $name);