PHP: Passing Interface as Parameter

Question

In .NET I have done that I passed Interfaces as parameters in class methods. I want to know is it possible in PHP?

My scnerio is that I have a class dealing with mqin system functionality. Now I want to integrate Notification system with it. I want to keep notification system separate since it is not the main part of the system plus I can use it somewhere else. If I have the following structure:

Interface INotification
{
  public set()
  public send()
}

And then I do:

class MyClass
{
   public setNotifier(INotification $notifier)
  {
  }
}

So Is it possible that I can access set() and send() here after implementing them in a class? I want to know how this C# Example work that they set parameters of an Interface type.

Thanks

You only forgot the function keyword everywhere and semicolons in the interface declaration. But that's how it works. — mario
– mario, Commented Oct 9, 2011 at 17:56
This counts for most parts of php: just do it. Just call the method on your parameter, it will work. — TJHeuvel
– TJHeuvel, Commented Oct 9, 2011 at 17:56
(reference) php.net/manual/en/language.oop5.typehinting.php — Gordon
– Gordon, Commented Oct 9, 2011 at 18:00

Mikulas Dite · Accepted Answer · 2011-10-09 17:54:41Z

1

Yes, it is possible, pretty much as you wrote. Example of such interface: http://api.nette.org/2.0/source-Http.IResponse.php.html#18 and example of such parameter: http://api.nette.org/2.0/source-Http.Context.php.html#32

answered Oct 9, 2011 at 17:54

Mikulas Dite

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2 Comments

Volatil3 Over a year ago

Awesome. A pretty much clear explaination how OOPS complex feature gonna work. Infact other things are also well explained. Thanks a bunch!

Volatil3 Over a year ago

What advantage do I get passing Interface as parameters instead of object of type Class? see the code. pastebin.ca/2088573

JRL · Accepted Answer · 2011-10-09 18:01:23Z

0

Yes, you can do as you coded. You can find more information and examples on php.net.

Note that specifying the type in the method parameter (type hinting) is allowed (PHP >= 5), but not required.

edited Oct 9, 2011 at 18:01

answered Oct 9, 2011 at 17:54

JRL

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