- var_dump: documentation ( source)
<?php
$xml_content = '<?xml version="1.0" encoding="UTF-8"?>
<users>
<user>
<name>Alexander</name>
<email>alexander@test.com</email>
</user>
<user>
<name>Tyler</name>
<email>tyler@test.com</email>
</user>
</users>';
$xml = new DOMDocument();
$xml->loadXML( $xml_content );
$xpath = new DOMXPath($xml);
$users = $xpath->query( '//user' );
$username = $xpath->query ( 'email', $users->item(0) );
var_dump( $username );