I am creating a facebook feed plugin for wordpress and have it working when it is using a local file however I need to load into $fb = new SimpleXMLElement($xmlstr); .

$xmlstr is a variable with the XML in, the content inside that file is from here https://www.facebook.com/feeds/page.php?format=rss20&id=133869316660964 .

Is it possible with SimpleXMLElement to store data from a webpage?