3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = 'tst'; $b = array ( $a => &$a ); $a = 'bnb'; echo $b['tst']; ?>
based on Uso8f
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
bnb