Easy way to autonomous periodic data update in Laravel, PHP

How can I autonomous calculate and update value for one column in my Laravel project? I have no much experience in web-dev, so I just dont how to do it effective.

For example, now I’ve column “Condition” that calculates every time user open main page, I know its a dumb solve, so I want to update this “Condition” column every time when column “Count” (just any count) was changed and do it autonomous. I thought about events and listeners, but have too few information about how correctly communicate with this in my case.

In C#, for example, it was too easy, just subscribe to any event and do what u want. Here I need something likes columnWasChanged('Count') -> so call event/listener handler.

Thanks!

I tried:

//...ControllersMyController.php

public function index() {
    ...
    ...
    event(new UpdateConditionEvent($request));
    ...
}

//...ListenersConditionUpdateListener.php

public function handle(UpdateConditionEvent $event) {
    //...updatuing...
}