Hi, In this tutorial, I am going to teach you how to log out a user after 10 minutes of inactivity on the site.
Generally, we implement the logic like this when user logins authenticate the user information, If user information is a valid i.e username, email, and password then we will create the session for the user.
Then user session is maintained throughout the website. whenever a user logs out then we will remove the session of the user on the server. If a user doesn't log out from the site then his session never expired / removed automatically, we have to remove the session manually, In this situation, we can implement this mechanism i.e log out a user after 10 minutes of inactivity on the site.
In Session start page to set the login time in the session.
sessionStart.php
Generally, we implement the logic like this when user logins authenticate the user information, If user information is a valid i.e username, email, and password then we will create the session for the user.
Then user session is maintained throughout the website. whenever a user logs out then we will remove the session of the user on the server. If a user doesn't log out from the site then his session never expired / removed automatically, we have to remove the session manually, In this situation, we can implement this mechanism i.e log out a user after 10 minutes of inactivity on the site.
In Session start page to set the login time in the session.
sessionStart.php
<?php
session_start(); //on pageload
$_SESSION['start_time'] = time(); //on session creation
$_SESSION["name"] = "TechiesBadi";
$_SESSION["email"] = "techiesbadi@gmail.com";
header('Location: home.php');
?>
isLoggedIn.php<?php
session_start(); //on pageload
$timeout = 10; // Set timeout minutes
$logout_redirect_url = "index.php"; // Set logout URL
$timeout = $timeout * 60; // Converts minutes to seconds
if (isset($_SESSION['start_time'])) {
$elapsed_time = time() - $_SESSION['start_time'];
if ($elapsed_time >= $timeout) {
session_destroy();
header("Location: $logout_redirect_url");
}
}
$_SESSION['start_time'] = time();
?>
include this isLoggedIn.php in your header page simply or you can add this entire code in header page. Then a user can log out the site after 10 minutes of inactivity on the site automatically.
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