3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php interface truc { const OK = 'OK'; } class A implements truc { const OK = 'PAS OK'; }
Output for 7.0.0 - 7.2.0
Fatal error: Cannot inherit previously-inherited or override constant OK from interface truc in /in/7YKFA on line 8
Process exited with code 255.
Output for 5.3.18 - 5.6.28
Fatal error: Cannot inherit previously-inherited or override constant OK from interface truc in /in/7YKFA on line 9
Process exited with code 255.