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run code in 150+ php & hhvm versions
Bugs & Features
<?php interface flerp { public function bar(); } abstract class derp implements flerp { public function foo() { echo 'foo'; } } class herp extends derp { } $herp = new herp(); $herp->foo(); $herp->bar();
based on 6palY
Output for 5.0.5 - 5.2.17, 7.0.0 - 7.1.0
Fatal error: Class herp contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (flerp::bar) in /in/0vUPG on line 14
Process exited with code 255.
Output for hhvm-3.12.0
Fatal error: Class herp contains abstract method (bar) and must therefore be declared abstract or implement the remaining methods in /in/0vUPG on line 14
Process exited with code 255.
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.3.0 - 5.6.28
Fatal error: Class herp contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (flerp::bar) in /in/0vUPG on line 15
Process exited with code 255.
Output for 5.0.2 - 5.0.4
Fatal error: Class herp contains 1 abstract methods and must therefore be declared abstract (flerp::bar) in /in/0vUPG on line 14
Process exited with code 255.
Output for 5.0.0 - 5.0.1
Fatal error: Cannot instantiate abstract class herp in /in/0vUPG on line 18
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/0vUPG on line 2
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/0vUPG on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/0vUPG on line 2
Process exited with code 255.