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<?php $creationTime = \DateTimeImmutable::createFromFormat('Y-m-d H:i:s', '2017-07-10 10:00:00'); $expirationTime = \DateTimeImmutable::createFromFormat('Y-m-d H:i:s', '2017-07-10 11:00:00'); $time = $creationTime->diff($expirationTime); var_dump($time->format('%s'));
Output for 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 - 8.3.7
string(1) "0"
preferences:
204.12 ms | 404 KiB | 292 Q