3v4l.org

run code in 200+ php & hhvm versions
<?php $interval = new \DateInterval('P2W'); $payPeriodStart = new \DateTime('2012-08-12T00:00:00'); $today = new \DateTime('2016-03-04T12:00:00'); $today->add($interval); $payPeriods = new \DatePeriod($payPeriodStart, $interval, $today); $payPeriods = array_reverse(iterator_to_array($payPeriods)); $recent = [ 'current' => [ 'start' => $payPeriods[1]->format('Y-m-d'), 'end' => $payPeriods[0]->format('Y-m-d') ], 'previous' => [ 'start' => $payPeriods[2]->format('Y-m-d'), 'end' => $payPeriods[1]->format('Y-m-d') ] ]; var_dump($recent);
Output for 5.6.0 - 5.6.38, 7.0.0 - 7.2.11
array(2) { ["current"]=> array(2) { ["start"]=> string(10) "2016-02-21" ["end"]=> string(10) "2016-03-06" } ["previous"]=> array(2) { ["start"]=> string(10) "2016-02-07" ["end"]=> string(10) "2016-02-21" } }
Output for hhvm-3.12.14 - 3.22.0
array(2) { ["current"]=> array(2) { ["start"]=> string(10) "2016-03-20" ["end"]=> string(10) "2016-03-20" } ["previous"]=> array(2) { ["start"]=> string(10) "2016-03-20" ["end"]=> string(10) "2016-03-20" } }