- var_dump: documentation ( source)
- ini_set: documentation ( source)
- session_regenerate_id: documentation ( source)
- session_start: documentation ( source)
- session_id: documentation ( source)
<?php
ini_set('session.hash_function','sha512');
session_start();
$orig = session_id();
session_regenerate_id();
$new = session_id();
var_dump($orig,$new);