3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a=['foo'=>123]; define('foo', 'foo'); echo "lalala {$a[foo]} bar";
based on YjlQ9
Output for 5.6.30, hhvm-3.18.5 - 3.22.0, 7.0.28 - 7.2.8
lalala 123 bar