I want a class property to be reference to another class, not its object and then use this property to call the class's static methods.

class Database { private static $log;

public static function addLog($LogClass) {
    self::$log = $LogClass;
}

public static function log() {
    self::$log::write(); // seems not possible to write it like this
}

}

any suggestions how i can accomplish this?

cause i have no reason making them objects, i want to use the classes for it.