public static function AddInvitation()
 {
     $response = new simpleResponse();
     try {
         $parameters = AddInvitationWebService::collectParameters();
         $parametersErrors = AddInvitationWebService::validateParameters($parameters);
         if (count($parametersErrors) == 0) {
             $savedInvitation = AddInvitationWebService::saveInvitation($parameters);
             if ($savedInvitation->invitation_id > 0) {
                 $response->message = "La invitación ha sido guardada satisfactoriamente";
                 $response->status = "OK";
                 $response->data = $savedInvitation;
             } else {
                 $response->message = "Ocurrió un error al guardar la invitación";
                 $response->status = "ERROR";
                 $response->data = $savedInvitation;
             }
         } else {
             $response->message = "Parámetros Inválidos";
             $response->status = "ERROR";
             $response->data = $parametersErrors;
         }
     } catch (Exception $ex) {
         $response->message = $ex->getMessage();
         $response->status = "EXCEPTION";
         $response->data = NULL;
     }
     return $response;
 }
                $response->message = "SUCCESS";
                $response->data = $apps;
            } else {
                $response->status = "ERROR";
            }
        } catch (Exception $ex) {
            $response->status = "EXCEPTION";
            $response->message = $ex->getMessage();
        }
        return $response;
    }
    private static function collectParameters()
    {
        $parameters = new beParameters();
        $parameters->account_id = filter_input(INPUT_GET, "account_id");
        $parameters->token = filter_input(INPUT_GET, "token");
        if (!isset($parameters->account_id)) {
            $parameters->account_id = 0;
        }
        if (!isset($parameters->token)) {
            $parameters->token = "";
        }
        if (!isset($parameters->app_id)) {
            $parameters->app_id = 0;
        }
        return $parameters;
    }
}
include './inc/incJSONHeaders.php';
echo json_encode(AddInvitationWebService::GetInvitationAvailability());