Cannot receive HTTP POST from Device Magic (DM) form automation website

[Monk89721]

Cannot receive HTTP POST data from Device Magic (DM) form automation website.

I get this error:
Fatal error: Call to a member function getName() on a non-object in /portfolio/submissions/index.php on line 8

 

For this code:

<?php
$raw_body = file_get_contents("php://input");    
$xml = simplexml_load_string($raw_body);
echo $xml->getName()."\n<br />";
?>

 

So Instead I try with FireFox REST client (and use the data that should be sent from DM) and do the same as written in my first post and I get a reply - the root node name.

 

Why does the FF REST client work and my website does not?

 

Many thanks