3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?hh // decl namespace B { interface Z2 {} } namespace B { class Z_TRAIT_IMPL implements \B\Z1, \B\Z2 { } } namespace B { interface Z1 extends Z2 {} }
based on egKsV
Output for 5.6.0 - 5.6.30, 7.0.0 - 7.1.7
Parse error: syntax error, unexpected 'namespace' (T_NAMESPACE) in /in/PlujT on line 3
Process exited with code 255.
Output for hhvm-3.15.4
Fatal error: Uncaught Error: Undefined interface: B\Z1 in /in/PlujT:9 Stack trace: #0 {main}
Process exited with code 255.