What best practices should be followed when handling session deletion for authorized users in PHP?

When handling session deletion for authorized users in PHP, it is important to ensure that the session is properly destroyed to prevent unauthorized access to sensitive information. This can be achieved by using the session_destroy() function in PHP after checking the user's authorization status. Additionally, it is recommended to unset any session variables related to the user before destroying the session.

session_start();

// Check if user is authorized
if($user_authorized) {
    // Unset any session variables related to the user
    $_SESSION['user_id'] = null;
    
    // Destroy the session
    session_destroy();
}