What are the best practices for handling session IDs in PHP applications?

Session IDs in PHP applications should be handled securely to prevent session hijacking or fixation attacks. To ensure the security of session IDs, it is recommended to regenerate the session ID periodically, especially after privilege level changes or sensitive operations. Additionally, session IDs should be stored securely, such as using HTTPS and setting the session cookie parameters appropriately.

// Start or resume a session
session_start();

// Regenerate session ID to prevent session fixation attacks
session_regenerate_id(true);