Online PHP editor | refs for KhBQC

@ 2017-09-02T05:39:46Z

<?php

$datetime1 = new DateTime('2017-09-01 23:00:00');
$datetime2 = new DateTime('2017-09-02 01:34:00');
$diff = $datetime2->diff($datetime1);
$hours = round($diff->s / 3600 + $diff->i / 60 + $diff->h + $diff->days * 24, 2);
echo $hours;