Example to understand this function and difference with call_user_func:
<?php
class Beer {
const NAME = 'Beer!';
public static function printed(){
echo 'static Beer:NAME = '. static::NAME . PHP_EOL;
}
}
class Ale extends Beer {
const NAME = 'Ale!';
public static function printed(){
forward_static_call(array('parent','printed'));
call_user_func(array('parent','printed'));
forward_static_call(array('Beer','printed'));
call_user_func(array('Beer','printed'));
}
}
Ale::printed();
echo '</pre>';
?>