3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $var1 = "Hi"; $var2 = 3; $var2 = $var1; $var1 = "Bye"; echo $var2;
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
Hi
Output for hhvm-3.10.0

Process exited with code 137.