Abstract for Resource Filter

FooFilter.php

<?php

class FooFilter extends ResourceFilter
{
    public function index()
    {
        // Custom filtering for index();
    }
    
    public function store()
    {
        // Custom filtering for store();
    }
    
    public function show($id)
    {
        // Access to $id, just like the controller
    }
}

ResourceFilter.php

<?php

use Illuminate\Routing\Router;

abstract class ResourceFilter
{
    protected $router;

    public function __construct(Router $router)
    {
        $this->router = $router;
    }

    public function filter()
    {
        $action = $this->currentAction();
        $params = $this->currentParams();

        if (method_exists($this, $action)) {
            return call_user_func_array(array($this, $action), $params);
        }
    }

    private function currentAction()
    {
        $route = $this->router->currentRouteAction();
        return substr($route, strpos($route, "@") + 1);
    }

    private function currentParams()
    {
        return $this->router->current()->parameters();
    }
}