3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?hh class D extends C {} class C extends B {} class B {}
based on Uhm04
Output for 5.6.0 - 5.6.30, 7.0.0 - 7.1.7
Parse error: syntax error, unexpected 'class' (T_CLASS) in /in/mhhhV on line 2
Process exited with code 255.
Output for hhvm-3.15.4
Fatal error: Uncaught Error: unknown class C in /in/mhhhV:2 Stack trace: #0 {main}
Process exited with code 255.