3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $n = 1; echo null??$n??123; echo "\u{262F}"; ?>
based on AfDQY
Output for 7.0.0 - 7.2.0
1☯
Output for 5.3.22 - 5.6.28
Parse error: syntax error, unexpected '?' in /in/0Wkbc on line 3
Process exited with code 255.