3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo $this_year = date("Y", "-6 month"); ?>
Output for 5.1.0 - 7.1.0
Notice: A non well formed numeric value encountered in /in/rs8Y1 on line 3 1970
Output for 4.3.0 - 5.0.5
1970