3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $string = 'true'; $c = $string - 1;
based on U9Cue
Output for 7.1.0 - 7.3.0rc4
Warning: A non-numeric value encountered in /in/EOZVY on line 3
Output for 5.3.20 - 7.0.20