How to make a variable accessable to the whole controller in laravel

Lets say I have a

IndexController

Which contains a function

public function store($store)
{
    $store = (query)->get();
    return $store;
}

Now I want one column from store to be accessible to all functions like

$id = $store->id

I want it to be usable like this

public function abv()
{
    $categories = (query)->where('id','=',$id)->get();
}

My point is that it becomes a global variable to the whole controller. How do I achieve this?

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