3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = true; $return = $a ?? "Success"; echo $return;
based on bZJmm
Output for 7.0.0 - 7.2.0
1
Output for 5.3.18 - 5.6.28
Parse error: syntax error, unexpected '?' in /in/CRTtv on line 3
Process exited with code 255.