3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class X {} class Y extends X {} class A { function f() {} } class B extends A { function f(): Y {} }
based on TlYNG
Output for 7.0.0 - 7.2.0
Output for 5.3.21 - 5.6.28
Parse error: syntax error, unexpected ':', expecting ';' or '{' in /in/XhVhg on line 10
Process exited with code 255.