3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo "2014-02-28"-"1991-03-01"; ?>
Output for 7.1.0 - 7.2.0
Notice: A non well formed numeric value encountered in /in/6cPkH on line 2 Notice: A non well formed numeric value encountered in /in/6cPkH on line 2 23
Output for 5.3.0 - 7.0.20
23