How to determine the screen size using php?

Question

PHP

How to determine the size (resolution) of the user's screen using php. Maybe I'm not digging there? Help!

Answer 1

No way. This is done on the front via js.

Answer 2

First, you don't need the screen resolution, but the size of the browser window.
Secondly, it can take - and change at any time, and if you use it, then you need to provide for this.
In-zero, it is, of course, determined by the user in the browser (JS), and not by you on the server (PHP).

Answer 3

The very basics. Where does RNR work?