3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $flags = []; $flags['a'] = $a = false; echo $flags['a'] . '\n'; echo $a . '\n';
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.2.6
\n\n