SimpleXML - I/O warning : failed to load external entity

Question

I\'m trying to create a small application that will simply read an RSS feed and then layout the info on the page.

All the instructions I find make this seem simplist

Answer 1

$url = 'http://legis.senado.leg.br/dadosabertos/materia/tramitando';
$xml = file_get_contents("xml->{$url}");
$xml = simplexml_load_file($url);