View file modules/lang.php
<?php
require_once '../system/function.php';
$lan = guard($_GET['lang']);
$url = SYS.'/langs/'.$lan.'.ini';
if (empty($lan)) {
go('/');
} elseif (!file_exists($url)) {
go('/');
} else {
setcookie('lang', $lan, time() + 3600 * 24 * 365, '/');
if ($_SERVER['HTTP_REFERER'] !== null) {
go($_SERVER['HTTP_REFERER']);
} else {
go('/');
}
}
exit;
?>