3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $num1 = ord(substr(md5('password'),5,1)); echo $num4 ?>
Output for 5.0.4 - 5.0.5, 7.0.0 - 7.1.0
Notice: Undefined variable: num4 in /in/e2oc9 on line 5
Output for 5.1.0 - 5.6.28, hhvm-3.10.0 - 3.12.0
Notice: Undefined variable: num4 in /in/e2oc9 on line 7
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: num4 in /in/e2oc9 on line 5