3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = "a"; echo $b = "$a"+1; echo gettype($b);
Output for 7.1.0
Warning: A non-numeric value encountered in /in/l97Td on line 3 1integer
Output for 4.3.0 - 7.0.14
1integer