3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $b = "string"; echo ++$b."\n"; echo $b."\n"; echo --$b."\n"; echo $b."\n"; echo ($b += 1)."\n"; echo $b."\n";
Output for 7.1.0
strinh strinh strinh strinh Warning: A non-numeric value encountered in /in/PrJVY on line 7 1 1
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.0.14
strinh strinh strinh strinh 1 1