3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php /** @var $test null|string */ $test = null; if (!empty($test)) { echo "DIO"; } else { echo "porco"; }
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.2.6
porco