string(0) ""

Call stack:

/var/www/webapps/orenedu/controllers/UserController.php:31 - var_die
/var/www/library/X1/MVC/Control.php:104 - Edu\UserController::show
/var/www/library/X1/MVC/Control.php:69 - X1\MVC\Control::tryAction
/var/www/library/X1/MVC/Controller.php:60 - X1\MVC\Control::run
/var/www/library/X1/MVC/Dispatcher.php:84 - X1\MVC\Controller::run
/var/www/library/X1/App/FrontController.php:144 - X1\MVC\Dispatcher::dispatch
/var/www/public/index.php:36 - X1\App\FrontController::run