GetMaster.php

<?php
  // Opening an SSH connection
$connection = ssh2_connect('localhost', 22);
ssh2_auth_password($connection, 'root', 'virtualsense');

  //Passing commands to the SSH connection
$stream = ssh2_exec($connection, "/root/scripts/xenserver/Gettest2.py");
//$stream = ssh2_exec($connection, "/root/scripts/xenserver/GetMaster2.py");
//$stream = ssh2_exec($connection, "/root/scripts/xenserver/GetMaster3.py");
$output = ssh2_fetch_stream($stream,SSH2_STREAM_STDERR);

  // Block Streaming to let the command finish (it will stop prematurely otherwise)
stream_set_blocking($stream, true);
  // The command may not finish properly if the stream is not read to end
   $output = stream_get_contents($stream);
   fclose($stream);

 echo "<?xml version='1.0'?><results><result><code>$output</code><message></message></result></results>";
?>