- Output for 7.1.25 - 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 - 8.2.19, 8.3.0 - 8.3.7
- 2.57
<?php
$datetime1 = new DateTime('2017-09-01 23:00:00');
$datetime2 = new DateTime('2017-09-02 01:34:00');
$hours = round(($datetime2->getTimestamp() - $datetime1->getTimestamp()) / 3600 , 2);
echo $hours; //2.57