How can PHP developers ensure that user sessions are properly destroyed and managed to prevent unauthorized access?

To ensure that user sessions are properly destroyed and managed to prevent unauthorized access, PHP developers can use session_regenerate_id() to generate a new session ID and destroy the old one when a user logs in or out. Additionally, developers should always use session_unset() to remove all session variables and session_destroy() to destroy the session data when the user logs out.

// Code snippet to properly destroy and manage user sessions
session_start();

// When user logs in
session_regenerate_id(true);

// When user logs out
session_unset();
session_destroy();