How do I call a static child function from parent static function?

How do I call child function from parent static function ?

In php5.3 there is a built in method called get_called_class() to call child method from parent class. But my server is running with php 5.1.

Is there any way can do this ?

I want to call it from a static function . So that I can not use "$this"

So i should use "self" keyword.

Below example my parent class is "Test123" , from the parent class static function "myfunc" am trying to call child class function like this "self::test();"

abstract class Test123
{

  function __construct()
  {
    // some code here
  }

  public static function myfunc()
  {
    self::test();
  }

  abstract function test();
}

class Test123456 extends Test123
{
  function __construct()
  {
    parent::__construct();
  }

  function test()
  {
    echo "So you managed to call me !!";
  }

}

$fish = new Test123456();
$fish->test();
$fish->myfunc();