Online PHP editor | refs for XiYTc

<?php $intervals = array( '1 second' => 1, '1 minute' => 60 * 60, '1 day' => 60 * 60 * 24, '1 year' => 60 * 60 * 24 * 365 ); foreach ($intervals as $interval => $expected) { $zeroDate = new \DateTime('@0'); var_dump($zeroDate->getTimestamp()); $zeroDate->add(\DateInterval::createFromDateString($interval)); echo sprintf("found %s expected %s\n", $zeroDate->getTimestamp(), $expected); }