What are some best practices for handling session management in PHP applications?

One best practice for handling session management in PHP applications is to regenerate the session ID after a user logs in to prevent session fixation attacks. This can be done by calling session_regenerate_id(true) after a successful login.

// Start the session
session_start();

// Check if the user is logged in
if($user_logged_in) {
    // Regenerate the session ID
    session_regenerate_id(true);
}