Online PHP editor | refs for tp1EM

<?php $start = new DateTime('2015-01-01'); $start->modify('first day of this month'); $end = date('yyyy-mm-dd'); $end->modify('first day of next month'); $interval = DateInterval::createFromDateString('1 month'); $period = new DatePeriod($start, $interval, $end); foreach ($period as $dt) { echo $dt->format("Y-m") . PHP_EOL; }