3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $x = 1; $y = "valon"; echo $x + $y; ?>
Output for 7.1.0 - 7.3.0beta1
Warning: A non-numeric value encountered in /in/70M4B on line 4 1
Output for 4.3.0 - 7.0.20
1