How can PHP developers ensure that their scripts are secure when dealing with session management?

PHP developers can ensure that their scripts are secure when dealing with session management by using secure cookies, implementing session_regenerate_id() to prevent session fixation attacks, setting session.cookie_httponly to true to prevent XSS attacks, and regularly validating and sanitizing session data.

// Enable secure cookies
ini_set('session.cookie_secure', 1);

// Regenerate session ID to prevent session fixation attacks
session_regenerate_id(true);

// Set session cookie to be accessible only through HTTP
ini_set('session.cookie_httponly', 1);

// Validate and sanitize session data
$_SESSION['user_id'] = filter_var($_SESSION['user_id'], FILTER_SANITIZE_NUMBER_INT);