<?php

declare(strict_types=1);

ini_set('session.use_only_cookies' , 1);
ini_set('session.use_strict_mode' , 1);

session_set_cookie_params([
    'lifetime' => 1800,
    'domain' => 'ethernal.win',
    'path' => '/',
    'secure' => true,
    'httponly' => true
]);

session_start();

if ( !isset($_SESSION["last_regen"]) ){
    session_regen();

} else {
    $timeout_m = 60 * 30; // 30 minutes
    if ((time() - $_SESSION["last_regen"]) > $timeout_m) {
        session_regen();
    }
}

function session_regen() {
    session_regenerate_id();
    $_SESSION["last_regen"] = time();
}