3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $num1 = ord(substr(md5('password'),5,1)) * ord(substr(md5('password'),10,1)) * substr(md5('password'), 3, 1) - (ord('F')*100+ord('K')); echo $num1; ?>
based on BCvkB
Output for 7.1.0 - 7.2.0
Warning: A non-numeric value encountered in /in/pPST6 on line 2 -7075
Output for 5.4.0 - 7.0.20
-7075