gistfile1.php

<?php 
function createMVCRoute($defaults) 
{
    $application = \Slim\Slim::getInstance();
    return function () use ($application, $defaults)
    {
        $controllerClass = $defaults['controller'];
        $defaultAction = isset($defaults['action']) ? $defaults['action'] : 'index';
        
        $args = func_get_args();
        $action = ($action = array_shift($args)) ? $action : $defaultAction;

        $controller = new $controllerClass($application);
        call_user_func_array([$controller, $action], $args);
    };
};

// Article
$application->map('/article(/:action)(/:id)', createMVCRoute(['controller' => '\Application\Controller\ArticleController']))->via('GET', 'POST')->name('article');

// Issue
$application->map('/issue/order/:id', createMVCRoute(['controller' => '\Application\Controller\IssueController', 'action' => 'order']))->via('POST')->name('issue-order');
$application->map('/issue(/:action)(/:id)', createMVCRoute(['controller' => '\Application\Controller\IssueController']))->via('GET', 'POST')->name('issue');

// Index
$application->map('/(:action)(/:id)', createMVCRoute(['controller' => '\Application\Controller\IndexController']))->via('GET', 'POST')->name('index');