- Output for 7.2.17 - 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
- 43
- Output for 7.0.0 - 7.0.31, 7.1.0 - 7.1.33, 7.2.0 - 7.2.9
- 44
<?php
$dateStart = new DateTime('2017-07-11 00:00:00');
$now = new DateTime('now', $dateStart->getTimezone());
$interval = $dateStart->diff($now);
print_r($interval->format('%s'));