3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $b = "string"; echo ++$b."\n"; echo --$b; echo $b += 1;
Output for 7.1.0 - 7.2.6
strinh strinh Warning: A non-numeric value encountered in /in/o9cHN on line 5 1
Output for 4.3.0 - 7.0.20
strinh strinh1