PHP XML Parser

<?
$request_url = "SOME-URL-THAT-HAS-XML"; 
$xml = simplexml_load_file($request_url) or die("feed not loading");

foreach($xml->entry as $entry) {
	$id = $entry->id;
	$author = $entry->author;
	$title = $entry->title;
	$content = $entry->content;

        // if there are a bunch of tags that are the same (for example 'link'), and we want the audio/mpeg one only
	foreach($entry->link as $d) { 
		$entry[$d['type']] = (string) $d["href"];
	}

	$audio = $entry["audio/mpeg"];
}

?>