How to correctly write a condition in the smarty template engine?

Question

PHP

Hello, there was a problem with composing a condition in smarty, namely this.

{if isset($_SESSION['id'])}
Вы успешно авторизовались!
{elseif empty($_SESSION['id'])}
{$auth}
{/if}

I am trying to do the following. If there is a session (id), then display the text about successful authorization, and if the session does not exist, then display the form for authorization. I read the documentation, but I did not think of it because of what nothing is displayed.

Answer 1

{if isset($smarty.session.id)}
You have successfully logged in!
{else}
{$auth}
{/if}