3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = 'string'; var_dump($a['false-offset']);
Output for 5.4.0 - 7.1.7
Warning: Illegal string offset 'false-offset' in /in/Z5g3X on line 3 string(1) "s"
Output for 4.3.0 - 5.3.29
string(1) "s"