100 facts vedran

    function getNextFactId($currentId, $EveryCroid) {
        reset($EveryCroid);
        while (!in_array(current($EveryCroid), [$currentId, null])) {
           next($EveryCroid);
        }
        $nextFactId = next($EveryCroid);
        if ($nextFactId > end($EveryCroid)) {
            $$nextFactId = reset($EveryCroid);
        }
        return $nextFactId;
    }