How can browser extensions or settings affect the session handling in PHP applications?

Browser extensions or settings can affect session handling in PHP applications by modifying or blocking cookies, which are commonly used to store session IDs. This can result in sessions not being maintained or users being logged out unexpectedly. To mitigate this issue, developers can use session_regenerate_id() to generate a new session ID on each request, making it more difficult for malicious actors to hijack sessions.

<?php
session_start();

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

// Your PHP code here
?>