3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump((!1)[!0]);
based on vDtg6
Output for hhvm-3.15.4, 7.0.0 - 7.3.0alpha1
NULL
Output for 5.6.0 - 5.6.30
Parse error: syntax error, unexpected '[' in /in/qasmO on line 3
Process exited with code 255.