[SOLVED] Interface Help

[robbyc]

Hi can anyone help me possibly with an example.

 

I want to define methods AS WELL AS private class variables/properties which must be implemented by sub classes the class variables are particularly important. Is this possible using an interface? all the documentation I read seems unclear. Or is it not possible to define variables that must be implemented in sub classes?

 

Thanks in advance

[trq]

You could use an interface.

 

<?php

  interface foo {
    private a;
    private b;
    public function geta();
  }

  class bar implements foo {
    private a = "this is a";
    private b = "this is b";
    public function geta() {
      return $this->a;
    }
  }

?>

 

Or.... If you would like to implement some of the functionality within your interface you could use abstraction.

 

<?php

  abstract class foo {
    private a = "this is a";
    private b = "this is b";
    abstract public function geta();
  }

?>

[robbyc]

Hi yeah have sorted my problem now. I realised that I don't want to define member variables (which you can't using interfaces anyway) as they should really be accessed through get and set methods.

 

Thanks