[Ayuda] Redireccionar id

if($_GET['id']=== false){ die('<script>document.location="hxxp://home.com";</script>'); }

if(!mysql_num_rows(mysql_query('SELECT id FROM `table` WHERE id = \''.(int)$_GET['id'].'\' LIMIT 1'))) header('Location: http://home.com');

if(isset($_GET['id']) && ctype_digit($_GET['id'])) // Si se ha enviado parámetro numérico...
{
    if(mysql_num_rows($cueri = mysql_query('SELECT id FROM `table` WHERE id = \''.$_GET['id'].'\' LIMIT 1'))) 
    { 
        // Si existe: $data = mysql_fetch_x($cueri);
    }
    else // Si no existe
    {
        header('Location: http://home.com'); // redirigimos a home
    }
}

if(!mysql_num_rows(mysql_query('SELECT id FROM `table` WHERE id = \''.(int)$_GET['id'].'\' LIMIT 1'))) header('Location: http://home.com');