Online PHP editor | output for uGrcs

<?php $xml_string = <<<EOX <?xml version="1.0" encoding="UTF-8"?> <gesmes:Envelope xmlns:gesmes="http://www.gesmes.org/xml/2002-08-01" xmlns="http://www.ecb.int/vocabulary/2002-08-01/eurofxref"> <gesmes:subject>Reference rates</gesmes:subject> <gesmes:Sender> <gesmes:name>European Central Bank</gesmes:name> </gesmes:Sender> <Cube> <Cube time='2013-08-23'> <Cube currency='USD' rate='1.3355'/> <Cube currency='GBP' rate='0.85910'/> <Cube currency='HUF' rate='298.98'/> </Cube> </Cube> </gesmes:Envelope> EOX; $xml = simplexml_load_string($xml_string); $xml->registerXPathNamespace('c', 'http://www.ecb.int/vocabulary/2002-08-01/eurofxref'); $result = $xml->xpath('//c:Cube[@currency="USD"]'); echo count($result);