3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = 'test'; echo $a ?? 2;
based on VPU1D
Output for 7.0.0 - 7.2.0
test
Output for 5.3.19 - 5.6.28
Parse error: syntax error, unexpected '?' in /in/gt3fm on line 3
Process exited with code 255.