How does the session_regenerate_id function help prevent session hijacking in PHP applications?

Session hijacking occurs when an attacker gains access to a user's session ID and impersonates the user. The session_regenerate_id function in PHP helps prevent session hijacking by generating a new session ID for the user after successful authentication, making it harder for an attacker to guess or steal the session ID.

session_start();
session_regenerate_id(true);