3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $ar = array(" ~aa" => "aa"); echo $ar["~aa"];
Output for 5.3.0 - 7.1.0
Notice: Undefined index: ~aa in /in/BAFSa on line 3
Output for 4.3.0 - 5.2.17
Notice: Undefined index: ~aa in /in/BAFSa on line 3