Как вытащить элемент из xml?

<?
$xml = new DOMDocument();
$date = @$xml->load('http://www.cbr.ru/scripts/XML_daily.asp?date_req=' . date('d/m/Y'));
$root = $date->documentElement;
$valcurs = $root->getElementsByTagName('ValCurs');
echo $valcurs->item(0)->getAttribute('Date');
?>

Fatal error: Uncaught Error: Call to a member function getElementsByTagName() on null in C:\Users\Decay\Desktop\public_html\test\load.php:12 Stack trace: #0 {main} thrown in C:\Users\Decay\Desktop\public_html\test\load.php on line 12