3v4l.org

run code in 150+ php & hhvm versions
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<?php echo strtotime('-24 hours', strtotime(date('Y-m-d 00:00:01'))); ?>
Output for 4.3.0 - 4.4.9, 5.0.3 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
1386802801
Output for 5.0.0 - 5.0.2
1386802800