3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump($firstname ?? 'Lee');
based on diQ4A
Output for 7.0.0 - 7.2.0
string(3) "Lee"
Output for 5.3.19 - 5.6.28
Parse error: syntax error, unexpected '?' in /in/WvD4V on line 3
Process exited with code 255.