3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a='h1'; $a++; echo $a; $b='h1'; $b+=1; echo $b;
Output for 7.1.0
h2 Warning: A non-numeric value encountered in /in/CTq9v on line 7 1
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.0.14
h21
Output for hhvm-3.10.0

Process exited with code 153.