3v4l.org

run code in 300+ PHP versions simultaneously
<?php $start = new DateTime('2013-02-01'); $end = new DateTime('2013-02-17'); $interval = new DateInterval('P2D'); $period = new DatePeriod($start, $interval, $end); foreach ($period as $dt) { echo $dt->format("l Y-m-d") . PHP_EOL; }
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Friday 2013-02-01 Sunday 2013-02-03 Tuesday 2013-02-05 Thursday 2013-02-07 Saturday 2013-02-09 Monday 2013-02-11 Wednesday 2013-02-13 Friday 2013-02-15
preferences:
206.4 ms | 405 KiB | 411 Q