PHP - making use of __call function in interface class

Question

Is it okay to make magic function __call as an abstract and include in interface class so that all the implementation classes are bound to include __call function? Thanks

SOFe · Accepted Answer · 2016-02-18 11:10:05Z

1

Maybe it is easier to do some testing before you ask whether something can be done.

$ php -r '
abstract class Foo{
  public abstract function __call($a,$b);
}
class Bar extends Foo{}
'
PHP Fatal error:  Class Bar contains 1 abstract method and must therefore be declared abstract or implement the remaining methods

(Foo::__call) in Command line code on line 5

$ php -r '
interface Foo{
  public function __call($a,$b);
}
class Bar implements Foo{}
'
PHP Fatal error:  Class Bar contains 1 abstract method and must therefore be declared abstract or implement the remaining methods

(Foo::__call) in Command line code on line 5

answered Feb 18, 2016 at 11:10

SOFe

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1 Comment

Khem Over a year ago

I have already tested.. just curious whether it is the right approach or not to use magic functions like __call as abstract and use in interface.

Sebastian Malaca · Accepted Answer · 2016-02-18 21:12:21Z

0

Interface is the contract that any class that implements it have to fulfill. What kind of the contract it would be if the interface will contain __call() method?

Interface is a guarantee that some specified functionality will be implemented by the class. __call() is not a 'specified functionality'. It is rather lack of it.

So, even if it would be possible this is definitely something that you shouldn't do.

answered Feb 18, 2016 at 21:12

Sebastian Malaca

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