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<?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
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

preferences:
132.81 ms | 403 KiB | 185 Q