3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $x = 1; $y = "avalon"; echo $x + $y; ?>
Output for 7.1.0 - 7.2.0
Warning: A non-numeric value encountered in /in/sK21W on line 4 1
Output for 4.3.0 - 7.0.20
1