3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $i = 10; echo 'test' . $i - 1;
based on aJqJ2
Output for 7.1.0 - 7.2.0
Warning: A non-numeric value encountered in /in/IbR71 on line 4 -1
Output for 5.3.18 - 7.0.20
-1