php abstract class extending another abstract class
<p>Is it possible in PHP, that an abstract class inherits from an abstract class?</p>

<p>For example, </p>

<pre><code>abstract class Generic {
    abstract public function a();
    abstract public function b();
}

abstract class MoreConcrete extends Generic {
    public function a() { do_stuff(); }
    abstract public function b(); // I want this not to be implemented here...
}

class VeryConcrete extends MoreConcrete {
    public function b() { do_stuff(); }

}
</code></pre>

<p>( <a href="http://stackoverflow.com/questions/2789328/abstract-class-extends-abstract-class-in-php">abstract class extends abstract class in php?</a> does not give an answer)</p>
