How can PHP handle inter-domain sessions effectively to avoid losing session data during cross-domain requests?

When dealing with inter-domain sessions in PHP, one effective way to avoid losing session data during cross-domain requests is to use a centralized session storage mechanism. This can involve storing session data in a database or using a session management service like Redis. By storing session data centrally, it can be accessed and maintained across different domains seamlessly.

// Set up session to use centralized storage
ini_set('session.save_handler', 'files'); // Change 'files' to 'redis' or 'database' for centralized storage
ini_set('session.save_path', '/path/to/centralized/storage'); // Update the path accordingly

// Start the session
session_start();