3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php //$var = 'A'; //$var = ''; //$var = null; //$var = 0; if (! isset($var) || $var) { echo "not empty or not defiend or a null value"; } else { echo "empty"; }
Output for 4.3.0 - 7.1.0
not empty or not defiend or a null value