How can hosting providers like Funpic impact the functionality of PHP sessions and session save paths?

Hosting providers like Funpic can impact the functionality of PHP sessions by restricting access to certain directories or limiting the amount of storage space available for session data. This can result in session save path errors or session data being lost. To solve this issue, you can specify a custom session save path in your PHP configuration to ensure sessions are stored in a location that is accessible and has enough storage space.

// Set custom session save path
session_save_path('/custom/session/path');