3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?hh interface I { } class B implements I { } class D extends B { } new D();
based on NFMnI
Output for 5.6.0 - 5.6.30, 7.0.0 - 7.1.7
Parse error: syntax error, unexpected 'interface' (T_INTERFACE) in /in/UW2eW on line 2
Process exited with code 255.
Output for hhvm-3.15.4