3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $b = false; $c = 567; $a = $b ? 456 : $c ?? 123 ; var_dump($a);
based on kH7F6
Output for hhvm-3.15.4, 7.0.0 - 7.2.6
int(567)
Output for 5.6.0 - 5.6.30
Parse error: syntax error, unexpected '?' in /in/qXk5K on line 8
Process exited with code 255.