Question

I have good oop understanding but poor understanding of its implementation in php…

I have the following code, hope it’s self documented =).

I need to have BB in the output

class A{
    // I can't copy function::classname() to all my descendant classes

    static function classname(){
        echo __CLASS__;
    }
}

class B extends A{

    static function test(){
        self::classname();
    }

    function test1(){
        self::classname();
    }



    //i have A LOT of static and non-static functions using self::classname() in their code
    // I can't copy all them to base class
    }

    $v = new B();
    B::test();
    $v->test1();

I’m stuck with static:: and self:: syntax

---

PS: another crazy question I’ve come across:

Suppose I have

function doSomething(){
    echo $this->id;
}

Sometimes it gets into the static contexts. Yes, I know, that’s because my bad application design. But is it possible to create a second(mirror, overloading) function

static function doSomething(){
    echo false;
}

It means that using
$obj->doSomething() returns id and using Class::doSomething() returns false

---

Question 3:

Is it possible to get property default value in static context an property value in non-static context automatically?

Answer 1

Have a look at late static binding.

class A {
    static function classname() {
        echo __CLASS__;
    }

    static function test1() {
        static::classname();
    }
}

class B extends A {
    static function classname() { 
        echo __CLASS__;
    }
}

$v = new B();
B::test1();
$v->test1();

Or as pointed out by Long Ears in the comments, assuming php 5.3.0+ you can use get_called_class()

class A {
    static function classname() {
        echo get_called_class();
    }

    // this can be defined in either class A or B without affecting the output
    static function test1() {
        static::classname();
    }
}

class B extends A {
}

$v = new B();
B::test1();
$v->test1();

Outputs:

BB