How can a logout functionality be implemented in PHP using link parameters?

To implement a logout functionality in PHP using link parameters, you can create a logout link that when clicked, will pass a parameter to the PHP script indicating that the user should be logged out. The PHP script can then unset the session variables and destroy the session, effectively logging the user out. 

<?php
session_start();

if(isset($_GET['logout'])) {
    session_unset();
    session_destroy();
    header("Location: login.php");
    exit;
}
?>

<a href="?logout=true">Logout</a>

Keywords

PHP logout functionality link parameters session management header redirection

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