echo sprintf($outputFormat, $time, $timeStamp, $date);
$time = 'now';
$dateObj = new DateTime();
$dateObj->add(DateInterval::createFormDateString($time));
$timeStamp = $dateObj->getTimestamp();
$date = $dateObj->format('Y-m-d H:i:s');
echo sprintf($outputFormat, $time, $timeStamp, $date);
$time = '+1 day';
$dateObj = new DateTime();
$dateObj->add(DateInterval::createFormDateString($time));
$timeStamp = $dateObj->getTimestamp();
$date = $dateObj->format('Y-m-d H:i:s');
echo sprintf($outputFormat, $time, $timeStamp, $date);
$time = '+1 year 2 month 3weeks';
$dateObj = new DateTime();
$dateObj->add(DateInterval::createFormDateString($time));
$timeStamp = $dateObj->getTimestamp();
$date = $dateObj->format('Y-m-d H:i:s');
echo sprintf($outputFormat, $time, $timeStamp, $date);
// 日付として無効な文字列の場合、現在日時になる
$time = 'Time is Money';
$dateObj = new Datetime();
$dateObj->add(DateInterval::CreateFormDateString($time));
$timeStamp = $dateObj->getTimestamp();
$date = $dateObj->format('Y-m-d H:i:s');
echo sprintf($outputFormat, $time, $timeStamp, $date);
echo '</table>';
?>
</div>
</body>
</html>
