How do sessions work in laravel?

Question

PHP

We can work with sessions like this: But if we try to get data as usual, we get an error If we start the session, everything works, BUT the session is empty!!
$request->session()->get('key');

var_dump($_SESSION); // undefined variable

session_start();
var_dump($_SESSION);    // array[]

How so? _previous _token etc. should be stored there as well.

Answer 1

there is nothing magical about the session.
it's just a cookie in the browser and storage on the server, where an array with information is searched for by the key from the session.
that's all.
to realize such hands - business for 5 minutes.
what Lara does.
session () climbs into cookies and takes the key from there. using this key, climbs into the storage (it can be any - base, radish, etc.), gets an array from it, and from the array gets 'key'
everything is simple
, only two more or less complicated moments
1. the key in the cookie is necessary write not anyhow what but so that it was impossible to pick up. random_bytes to help, and more authentic, 20 pieces.
2. In order not to climb into the storage every time you need to write a value to the session, you can define a function that is called after the script is executed. and in it already write an array from the script to the storage