How to organize an instance of a class called through call_user_func ?

Question

PHP

There was such a question.
I am writing a ranking system for the user, the description of each rank will be in a separate class.
$rangs - an array of all ranks

foreach($rangs as $rang) {
            
            $alias = ucwords($rang['alias']);
        
            // проверяем наличие класса для определения ранга 
            if(!class_exists($pathToRangsClass.$alias)) {
                throw new \Exception('Не найден класс '.$pathToRangsClass.$alias);
            }
            
            $verify = call_user_func("\\modules\\rangs\\libraries\\{$alias}::verify", $userId);
            
       }

The class method is called, everything is fine. Now in the class itself I need to organize something like:

public static function getInstance($className=__CLASS__)
    {
        return new $className;
    }

to have access to $this. But there is no way to organize it.
These are the jokes that don't work:

$verify = call_user_func("\\modules\\rangs\\libraries\\{$alias}::getInstance", $userId);
$verify = call_user_func("\\modules\\rangs\\libraries\\{$alias}::getInstance()->verify", $userId);

Answer 1

Never use call_user_func. It works very slowly.

Answer 2

Why do you like static methods so much? Why do you need classes then? Why not just spread the functions by namespace?

Answer 3

Try like this:

$verify = call_user_func(
    [
        "\\modules\\rangs\\libraries\\{$alias}",
        "getInstance"
    ],
    $userId
);

In the array, the first element is the name of the class or object instance, the second - the name of the method.
Read more in the official source: php.net/manual/en/language.types.callable.php
But based on what I understood from your wording, you need something like:

$verify = call_user_func([
    "\\modules\\rangs\\libraries\\{$alias}",
    "getInstance"
])->verify($userId);

Answer 4

OOP is not your way?