PHP file_get_contents() passing information via GET
===

I'm writing a PHP script that retrieves steam user profile information (for a servers forum/website I'm making), and I seem to be stuck on getting the xml file.  To get the data in xml format, the address is http://steamcommunity.com/profiles/<steam 64 id>/?xml=1

The issue is that it doesn't seem to actually be passing the ?xml=1 as GET data, but instead, possibly ignoring it.  Here is by code:

    function parseSteamInformation( $steamid ) {
    	$result = file_get_contents( "http://steamcommunity.com/profiles/$steamid/?xml=1" );
    	$xml = simplexml_load_string( $result );
    	if( $xml ) {
    		$data = array( 
    					"id64" => $xml->steamID64,
    					"steamName" => $xml->steamID,
    					"onlineState" => $xml->onlineState,
    					"stateMessage" => $xml->stateMessage,
    					"avatarIcon" => $xml->avatarFull,
    					"vacBanned" => $xml->vacBanned,
    					"steamRating" => $xml->steamRating,
    					"realName" => $xml->realName,
    				);
    		return $data;
    	}
    	return false;
    }

The result string is actually HTML instead of XML, but according to https://partner.steamgames.com/documentation/community_data , adding ?xml=1 should output XML.

I looked at content streaming, and tried adding:

    $data =  http_build_query(array("xml"=>1));  // needed somewhere?
    $context = stream_context_create(array(
    	'http' => array(
    		'method' => 'GET',
    		'header' => "Accept-language: en\r\n" .
    					"Cookie: xml=1\r\n"
    	)
    ));
    $result = file_get_contents( "http://steamcommunity.com/profiles/${steamid}/", false, $context );

Because google didn't reveal much information on passing GET parameters to a website with file
_get_contents(), I'm assuming I'm over-complicating something.

Any help is appreciated,
-Oz