Online PHP editor | refs for 35D4t

<?php $a = new \DateTime('2016-03-13 3:00:00', new DateTimeZone('America/Los_Angeles')); echo "Original Timestamp: ".$a->getTimeStamp()."\n"; $b = clone $a; $b->sub(new \DateInterval('PT1S')); echo "Subtract 1 second Timestamp: ".$b->getTimeStamp()."\n"; print_r([$a,$b]);