php - Calling a public, static function in an abstract class -


i guess question geared more towards language-geeks. have following class:

<?php   abstract class scopefactory {     public static function dostuff()     {      } }

now, i'm able call function, so:

scopefactory::dostuff()

and works happily. i've coded under impression abstract classes not used directly - , have implemented concrete class in order callable.

my impression of static not require instance callable.

could explain me why legal, , if should be? i'm curious finer details.

static methods in oop not change internal state, therefore can call static methods abstract class.


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