one of academic example, when forward_static_call() can be useful
<?php
class A
{
public static function test()
{
var_dump('we were here');
return static::class;
}
}
class B extends A
{
public static function test()
{
return self::class;
}
}
class C extends B
{
public static function test()
{
$grandParent = get_parent_class(parent::class); // $grandParent is A
return forward_static_call([$grandParent, __FUNCTION__]); // calls A::test()
}
}
// prints
// string(12) "we were here"
// string(1) "C"
var_dump(C::test());