View file go.php
<?php include('inc/funct.php'); include('inc/core.php'); if (empty($_GET['id'])) redirect(URL); else $id = htmlspecialchars($_GET['id']); $url = mysql_fetch_row(mysql_query('SELECT `URL` FROM `sites` WHERE id='.$id.'')); if (empty($url[0])) redirect(URL); else redirect($url[0]); ?>