3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(date(strtotime('00:00 last day of Jan')));
Output for 5.3.0 - 7.2.0
string(10) "1391122800"
Output for 5.1.0 - 5.2.17
string(0) ""
Output for 4.3.0 - 5.0.5
string(2) "-1"