3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php for( $d=72;$c = 63, $d > $c; $d -= 20) { echo $a . ' ' .$b . ' ' .$c; }
based on Cqvrs
Output for 5.0.4 - 7.2.0
Notice: Undefined variable: a in /in/9K5au on line 4 Notice: Undefined variable: b in /in/9K5au on line 4 63
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: a in /in/9K5au on line 4 Notice: Undefined variable: b in /in/9K5au on line 4 63