Interface and abstract public function
It seems to me that both interface and abstract public function are quite similar, it's like an order that some method must be implemented, so what's the difference? ...
abstract-function
How to declare abstract method in non-abstract class in PHP?
class absclass { abstract public function fuc(); } reports: PHP Fatal error: Class absclass contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (absclass::fuc) I want to know what it means by implement the remaining methods,how? ...