3v4l.org

run code in 200+ php & hhvm versions
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<?php echo date('Y-m-d',strtotime('-1 days',strtotime('2014-07-02')));
Output for 4.3.0 - 7.1.7, 7.2.0
2014-07-01
Output for 7.1.10

Process exited with code 137.