3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php print_r(strtotime('first day of today 01:00:00'));
Output for 5.3.0 - 7.1.7
1370041200
Output for 5.1.0 - 5.2.17
Output for 4.3.0 - 5.0.5
-1