case 'remove':
     $remove_parameters = "admin," . $openqrm_user . "," . $openqrm_password . "," . $request_fields['cr_id'];
     $cr_id = $request_fields['cr_id'];
     try {
         $res = $client->CloudRequestRemove($remove_parameters);
     } catch (Exception $e) {
         $res = $e->getMessage();
     }
     echo "removing request {$cr_id} : {$res} <br>";
     break;
     // ######################### cloud Create User example #########################
 // ######################### cloud Create User example #########################
 case 'usercreate':
     $create_user_parameters = "admin," . $openqrm_user . "," . $openqrm_password . "," . $request_fields['cr_username'] . "," . $request_fields['cr_userpassword'] . "," . $request_fields['cr_useremail'] . ",,,,,,,,";
     try {
         $res = $client->CloudUserCreate($create_user_parameters);
     } catch (Exception $e) {
         $res = $e->getMessage();
     }
     echo "Created Cloud User ID : {$res}<br>";
     break;
     // ######################### cloud Remove User example #####################
 // ######################### cloud Remove User example #####################
 case 'userremove':
     $remove_user_parameters = "admin," . $openqrm_user . "," . $openqrm_password . "," . $request_fields['cr_username'];
     try {
         $res = $client->CloudUserRemove($remove_user_parameters);
     } catch (Exception $e) {
         $res = $e->getMessage();
     }
     echo "Removed Cloud User {$remove_user_parameters} : {$res}<br>";