What steps can be taken to troubleshoot PHP session issues related to changing session IDs?

When changing session IDs in PHP, it is important to ensure that the session is properly regenerated to prevent session fixation attacks. To troubleshoot session issues related to changing session IDs, you can start by destroying the current session and then regenerating a new session ID.

session_start();

// Destroy the current session
session_destroy();

// Start a new session
session_start();