3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function getInstance($dbName) { if(empty($dbName)){ return "yes"; } else{ return "no"; } } echo getInstance(null); ?>
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
yes