Print out the current Euro value for a currency, based on ECB daily rates

ecb_rates.php

<?php
// for a list of all supported currencies, view the source code of this page:
// http://www.ecb.int/stats/eurofxref/eurofxref-daily.xml
$x = simplexml_load_file("http://www.ecb.int/stats/eurofxref/eurofxref-daily.xml");
function getEuroRate($symbol,$xml) {     
  $xml->registerXPathNamespace("ecb", "http://www.ecb.int/vocabulary/2002-08-01/eurofxref");
  $array = $xml->xpath("//ecb:Cube[@currency='".$symbol."']/@rate");
  $rate = (string) $array[0]['rate'];
  return $rate;
} 
echo "1 EUR = " . getEuroRate('GBP',$x) . " GBP\n";
echo "1 EUR = " . getEuroRate('USD',$x) . " USD\n";
echo "1 EUR = " . getEuroRate('CAD',$x) . " CAD\n";
echo "1 EUR = " . getEuroRate('JPY',$x) . " JPY\n";
?>