3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php print date('Y-m-d', strtotime('first day of this month', '2014-07-01 00:00:00'));
Output for 5.1.0 - 7.1.0
Notice: A non well formed numeric value encountered in /in/vrKqs on line 3 1970-01-01
Output for 4.3.0 - 5.0.5
1970-01-01