3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump('aaa' + 'b');
Output for 7.1.0 - 7.3.1
Warning: A non-numeric value encountered in /in/kn17c on line 2 Warning: A non-numeric value encountered in /in/kn17c on line 2 int(0)
Output for 4.3.0 - 7.0.20
int(0)