3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = false; $b = 'Default'; $c = $a ?? $b; var_dump($c);
based on 0gJ5G
Output for 7.0.0 - 7.2.0
bool(false)
Output for 5.3.19 - 5.6.28
Parse error: syntax error, unexpected '?' in /in/irgVT on line 5
Process exited with code 255.