3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = 'foo'; var_dump($a['bar']); var_dump(empty($a['bar']));
Output for 5.4.0 - 7.1.0
Warning: Illegal string offset 'bar' in /in/WDLHN on line 4 string(1) "f" bool(true)
Output for 4.3.0 - 4.4.9, 5.0.3 - 5.3.29
string(1) "f" bool(false)
Output for 5.0.0 - 5.0.2
string(1) "f" bool(true)