<?php

class A
{

    static public $name = 'zir4onah';

    static public function name()
    {
        return static::$name;
    }
}
class B extends A
{
    static public $name = 'qwe';

    public function getName()
    {
       return  B::name();
    }
}
/** If STATIC::  return static::$name; i can return B::name = 'qwe' else if  SELF:: return self::$name; return 'zir4onah' */
$a = new B();
$x = B::name(); // return qwe because  static::$name;
$b = $a->getName();