Online presentation - how to implement it in yii?

Question

JavaScript

The task is this:
there are two users;
User1 visits the site and creates a presentation.
User1 is responsible for switching slides.
User2 visits the site and joins the presentation.
Slides must switch simultaneously for both users.
This task needs to be solved within the yiiframework.

Actually, having googled enough, I came to the conclusion that you can use AJAX to implement long polling, BUT, maybe there are simpler solutions?

I would be grateful for your help in finding a solution.
Any material on the topic is welcome.

Answer 1

It is very difficult to come up with something simpler than Logn pooling. For anyone, you will have to install additional libraries, and all this will not be so trivial to set up.