3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $test = ''; $ar = array('' => 'test'); if (!empty($test) && isset($ar[$test])) { echo $ar[$test]; } else { echo "false"; }
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.1.0
false