Online PHP editor | refs for 3mjEA

<?php $i1 = DateInterval::createFromDateString("400 seconds")->format("H:i:s"); $i2 = DateInterval::createFromDateString("400.1 seconds")->format("H:i:s"); $i3 = DateInterval::createFromDateString("400.12 seconds")->format("H:i:s"); $i4 = DateInterval::createFromDateString("400.123 seconds")->format("H:i:s"); var_dump($i1, $i2, $i3, $i4);