<!DOCTYPE html>
<html>
<body>

<?php
libxml_use_internal_errors(true);
$myXMLData =
"<?xml version='1.0' encoding='UTF-8'?>
<document>
   <user>John Doe</wronguser>
   <email>john@example.com</wrongemail>
</document>";

$xml = simplexml_load_string($myXMLData);
if ($xml === false) {
     echo "Failed loading XML: ";
     foreach(libxml_get_errors() as $error) {
         echo "<br>", $error->message;
     }
} else {
     print_r($xml);
}
?>

</body>
</html>