3v4l.org

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<?php $oldTimestamp = strtotime("2014-02-20 19:30:00"); $newTimestamp = strtotime('-2 day', $oldTimestamp); echo $oldTimestamp; echo ' '; echo $newTimestamp; echo ' '; echo time();
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.3 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.6
1392921000 1392748200 1391535354
Output for 5.0.0 - 5.0.2
1392921000 1392678000 1391535354
preferences:
147.17 ms | 401 KiB | 217 Q