Online PHP editor | refs for tPWTm

<?php $baseDate = new DateTime('2017-01-01', new DateTimezone('UTC')); $endDate = clone $baseDate; for($i = 1; $i <= 4; ++$i) { $m = $i*15; $duration = new DateInterval("PT{$m}M"); $endDate->add($duration); } $totalDuration = $baseDate->diff($endDate); var_dump($totalDuration); echo $totalDuration->format('%a days, %h hours, %i minutes');