for ($i = 0; $i < $len; $i++) {
        $event = $data->fetch_assoc();

        $fromDate = $event['FromDate'];
        $toDate = $event['ToDate'];

        strtotime($fromDate);
        time() - strtotime($fromDate);

        strtotime($toDate);
        time() + strtotime($toDate);

if((time()-(60*60*24))< strtotime($fromDate) && (time()-(60*60*24))> strtotime($toDate))  {
            echo "<p>Arrangementet er et pågende arrangement</p>";
        }

        else if((time()-(60*60*24))< strtotime($fromDate)){
            echo "<p>Arrangementet er et kommende arrangement</p>";
        }

        else {
            echo "<p>Arrangementet er et tidligere arrangement</p>";
        }
}