3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = ''; $a['foo'] = 'bar';
Output for 7.1.0 - 7.2.6
Warning: Illegal string offset 'foo' in /in/rd3kd on line 4
Output for 4.3.0 - 5.6.30, hhvm-3.10.1 - 3.21.0, 7.0.0 - 7.0.23