What are the recommended methods for handling session management and login functionality in PHP when using framesets?

When using framesets in PHP, it is important to ensure that session management and login functionality work seamlessly across frames. One recommended method is to use session cookies with the "SameSite" attribute set to "None" to allow the session cookie to be sent cross-origin. Additionally, you can use the session_regenerate_id() function to regenerate the session ID after a successful login to prevent session fixation attacks.

// Set session cookie with SameSite attribute set to None
ini_set('session.cookie_samesite', 'None');
session_start();

// Regenerate session ID after successful login
if ($login_successful) {
    session_regenerate_id();
}