What potential issues could arise when trying to maintain a PHP session between a home server and an internet server?

One potential issue that could arise when trying to maintain a PHP session between a home server and an internet server is the difference in server configurations, which could lead to session data being lost or not properly synchronized. To solve this, you can use a database to store session data instead of relying on the server's default session handling.

// Use a database to store session data
session_save_path("path/to/database");
ini_set('session.save_handler', 'user');
session_start();