example_dispatch.php

<?php

       // A method looks like this assuming that you are passed a $request instance that contains all the needed info

        $builder = new ContainerBuilder();
        $builder->addDefinitions(__DIR__."/config/services.php");
        $container = $builder->build();
        
        
        $routeInfo = $this->dispatcher->dispatch($request->getMethod(), $request->getPathInfo());

        switch ($routeInfo[0]) {
            case FastRoute\Dispatcher::NOT_FOUND:
                // Handle 404 error
            case FastRoute\Dispatcher::METHOD_NOT_ALLOWED:
                // Handle 405 error
            case FastRoute\Dispatcher::FOUND:
                $handler = $container->get($routeInfo[1]);
                $vars = array_merge([$request], $routeInfo[2]);
                return $this->container->call($handler, $vars);
                break;
        }