3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php if(isset($xxx)) { echo "isset ".var_dump($xxx); } else { echo "notset ".var_dump($xxx); } ?>
Output for 5.0.4 - 7.3.0rc4
Notice: Undefined variable: xxx in /in/iv1dY on line 6 NULL notset
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: xxx in /in/iv1dY on line 6 NULL notset