3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $boolean = false; var_dump($boolean['key']); $string = 'string'; var_dump($string['key']);
Output for 5.4.0 - 7.2.0
NULL Warning: Illegal string offset 'key' in /in/69err on line 6 string(1) "s"
Output for 4.3.0 - 5.3.29
NULL string(1) "s"