Question

I have been trying to do something like below.

JavaScript

$.ajax({
   url: 'login.php',
   type: 'GET',
   success: function(response) {
      // get token and store in cookie for further requests to other files
   }
});

Login.php

<?php
   // getting $user_id from database again user email and password
   $user_id = "12345"; 

   $_SESSION["user"] = $user_id;

   echo $user_id;
?>

Now as multiple users would be using the app and calling the same login.php passing their email and password, I want to return them their id which they can use to access other resources. I am interested to know if PHP sessions would be different for all users or the same user would overwritten if 2 or more than 2 users login at the same time? I am not sure about PHP session scope.

Answer 1

They would each have their own unique session. Please make sure you also call session_start() first in your login.php