3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php interface A {} interface B extends A {} class C implements B, A {}
Output for 5.2.0 - 5.6.30, 7.0.0 - 7.2.0
Fatal error: Class C cannot implement previously implemented interface A in /in/XGONZ on line 7
Process exited with code 255.
Output for 5.0.0 - 5.1.6, hhvm-3.10.1 - 3.17.3
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/XGONZ on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING in /in/XGONZ on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/XGONZ on line 3
Process exited with code 255.