What are the best practices for constructing URLs with session IDs in PHP to ensure proper functionality?

When constructing URLs with session IDs in PHP, it is important to ensure proper functionality by using session_start() at the beginning of each PHP script to start or resume a session. This will allow PHP to properly handle session IDs and maintain session data across different pages. Additionally, it is recommended to use session_regenerate_id() to generate a new session ID to prevent session fixation attacks.

<?php
session_start();
session_regenerate_id();

// Your PHP code here
?>