3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $x = 'asdf'; echo $x['foo'];
Output for 5.4.0 - 5.6.28, 7.0.0 - 7.1.0
Warning: Illegal string offset 'foo' in /in/7P5Wt on line 4 a
Output for 4.3.0 - 5.3.29, hhvm-3.10.0 - 3.12.0
a