3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $str = 'abc'; var_dump($str['x']);
Output for 5.4.0 - 5.6.30, 7.0.0 - 7.2.1
Warning: Illegal string offset 'x' in /in/TrRqS on line 3 string(1) "a"
Output for 4.3.0 - 5.3.29, hhvm-3.10.1 - 3.22.0
string(1) "a"