goedecke

<?php
$xml = simplexml_load_file('test.xml'); 
$ns = $xml->getNamespaces(true);
$xml->registerXPathNamespace('c', $ns['cfdi']);
$xml->registerXPathNamespace('t', $ns['tfd']);
 
 
//EMPIEZO A LEER LA INFORMACION DEL CFDI E IMPRIMIRLA 
foreach ($xml->xpath('//cfdi:Comprobante') as $cfdiComprobante){ 
      echo $cfdiComprobante['version'];