3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = 'c'; echo $a; $a = 'd'; echo $a; $b = 'b'; echo $b; $b = 'y'; echo $b; ?>
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
cdby