3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $ary = array(); $ary['foo'] = bar; var_dump($ary);
Output for 4.3.0 - 7.1.0
Notice: Use of undefined constant bar - assumed 'bar' in /in/MR3WT on line 5 array(1) { ["foo"]=> string(3) "bar" }