3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo $a ?? 2;
based on g4JUH
Output for 7.0.0 - 7.2.0
2
Output for 5.3.19 - 5.6.28
Parse error: syntax error, unexpected '?' in /in/VPU1D on line 2
Process exited with code 255.