PHP Using session example and passing php variable to Javascript

I am trying to learn PHP again. This is simple PHP exercise - we have to use session variable to count how many times user has visited our page. To do this we first need to call session start, which will allow us to gain access to session variables. Also in this video you will see a simple way of passing php variable into javascript variable using json_encode function.
=====================================
SUBSCRIBE FOR MORE:
=====================================

[sailex]

Bro, SO MANY THANKS! This was very helpful!

[ginger-bread_man]

Nice video - how to know from JS that PHP session has expired?