Online PHP editor | refs for GEJS0

<?php function getDiffInHours(\DateTime $earlierDate, \DateTime $laterDate) { $utc = new \DateTimeZone('UTC'); //First convert to UTC to avoid missing hours due to DST etc $earlierDate->setTimezone($utc); $laterDate->setTimezone($utc); $diff = $earlierDate->diff($laterDate); return 24 * $diff->days + $diff->h; } $earlierDate = new \DateTime(); $laterDate = new \DateTime('+ 31 hours'); $hours = getDiffInHours($earlierTime, $laterTime); var_dump($hours, $earlierTime, $laterTime);