3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $var = $_SERVER['felipe'] ?? ""; echo $var;
based on eDI1p
Output for 7.0.0 - 7.2.0
Output for 5.3.18 - 5.6.28
Parse error: syntax error, unexpected '?' in /in/P2SD9 on line 2
Process exited with code 255.