How does the session_regenerate_id function in PHP help improve security?

The session_regenerate_id function in PHP helps improve security by generating a new session ID for the user, making it harder for attackers to hijack a user's session. This function is typically called after a user logs in or when their privilege level changes to prevent session fixation attacks.

// Start the session
session_start();

// Regenerate the session ID
session_regenerate_id(true);