How can PHP developers address session management challenges when hosting on providers like 1&1 Puretec with specific PHP configuration settings?

When hosting on providers like 1&1 Puretec with specific PHP configuration settings, PHP developers can address session management challenges by adjusting the session save path to a custom directory that is writable. This ensures that sessions are stored correctly and can be accessed across different pages on the website.

// Set custom session save path
session_save_path('/path/to/custom/session/directory');
session_start();