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Date: Mon, 21 May 2007 14:32:27 -0500
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Subject: Inconsistent behavior when using interfaces
From: ralph@smashlabs.com (Ralph Schindler)

Is this a problem or not?

The following will produce this notice:

Strict Standards: Declaration of Z_Concrete::__get() should be 
compatible with that of Z_Abstract::__get() in xxx on line 16

<?php

error_reporting(E_ALL | E_STRICT);

interface Z_Interface
{ }

abstract class Z_Abstract implements Z_Interface
{
   public function __get($name)
   {
     return;
   }
}

class Z_Concrete extends Z_Abstract
{
   public function & __get($name)
   {
     return null;
   }
}

$t = new Z_Concrete();





This code will not produce a notice:

<?php

error_reporting(E_ALL | E_STRICT);

abstract class Z_Abstract
{
   public function __get($name)
   {
     return;
   }
}

class Z_Concrete extends Z_Abstract
{
   public function & __get($name)
   {
     return null;
   }
}

$t = new Z_Concrete();





The only difference is that the former has an interface as a parent, the 
latter does not.  Is this a bug?

-ralph

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