Question

the question is really simple, but i searched it many different ways and the results were not related to my question.

so if i have a session variable in a php file if i open an html page after that and then a php file again, will i be able to retrieve the data ? or do they all have to be adjacent?

I tried php->html->php but i couldn’t get the variables on the other side. maybe Im doing something wrong.

Thanks in advance

Answer 1

Adjacency is not something that is really relevant for this question.

in PHP way of things, sessions are essentially files that contain serialized data on the server. The browser that called a script containing session_start() call receives a special token that identifies the session on the server, and it is normally (though not necessarily) stored as a cookie.

This effectively means that any php script that uses session_start() and receives a session id (via cookie or otherwise) will read and could use session data, unless it was removed from the server file system between the calls, or the session has expired (frankly, I’m not sure whether PHP removes the expired sessions on the server side).

Accessing anything outside of this model with the browser (html page, or even other sites) will not affect it in any way, unless these actions change or remove session id.