Why are interfaces unusable in PHP?

Posted by streetparade on Stack Overflow See other posts from Stack Overflow or by streetparade
Published on 2010-06-15T19:00:37Z Indexed on 2010/06/15 19:02 UTC
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I mean an interface definition without defining the return type makes it unusable?

This makes more Clear

Interface run
{

  public function getInteger();
}


class MyString implements run
{

public function myNumber()
{

}

public function getInteger()
{  
  return "Not a number";
}

}

In Java every Interface has a return type like Integer,String,Void

I know that PHP is unfortunately a loosly typed Language but isnt there a Solution for that Problem?

Is it Possible to defining a Interface with a Return type like Integer?

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