3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(date("Y-m-d", strtotime("2000-09-12 first day of this month")));
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
string(10) "2000-09-01"
Output for 4.3.0 - 5.2.17
string(10) "1970-01-01"