What are the best practices for managing sessions and session IDs in PHP to avoid conflicts or security risks?

To manage sessions and session IDs in PHP to avoid conflicts or security risks, it is important to generate unique session IDs, store them securely, and validate them properly. One way to achieve this is by using session_regenerate_id() to generate a new session ID for each session and by setting session cookie parameters to secure and httponly.

// Start session
session_start();

// Regenerate session ID
session_regenerate_id(true);

// Set session cookie parameters
session_set_cookie_params([
    'lifetime' => 0,
    'path' => '/',
    'domain' => 'example.com',
    'secure' => true,
    'httponly' => true
]);