Online PHP editor | refs for ngfpu

<?php $tz = new DateTimeZone('America/Los_Angeles'); $now = new DateTime('11 Nov 2014', $tz); $twoDaysAgo1 = new DateTime('11 Nov 2014 -2 days', $tz); $twoDaysAgo2 = new DateTime('11 Nov 2014 -172800 seconds', $tz); $twoDaysAgo3 = new DateTime('@' . ($now->getTimestamp() - 172800), $tz); var_dump($twoDaysAgo1->getTimestamp()); var_dump($twoDaysAgo2->getTimestamp()); var_dump($twoDaysAgo3->getTimestamp());