What is the significance of using session_unset() and session_destroy() in a logout script in PHP?

Using session_unset() and session_destroy() in a logout script in PHP is significant because it helps to properly end the user's session and clear any session data stored on the server. session_unset() removes all session variables, while session_destroy() destroys the session data associated with the current session ID. This ensures that the user is fully logged out and their session is completely terminated. 

<?php
session_start();

// Unset all session variables
$_SESSION = array();

// Destroy the session
session_destroy();

// Redirect to the login page
header("Location: login.php");
exit;
?>

Keywords

session_unset session_destroy logout script PHP significance

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