How to refactor long php file of routes (I'm using Slim Framework)

Question

I am using the Slim Framework for a simple crud-style application. My index.php file has become quite long and unwieldy with all the different routes. How can I clean up / refactor this code? For example I have code like the following for all the different routes and GET, POST, PUT, DELETE etc.

$app->get("/login", function() use ($app)
{//code here.....});

Answer 1

What I like to do is group routes, and for each group, I create a new file under a subdir called routes. To illustrate with some example code from the Slim docs:

index.php:

$app = new \Slim\Slim();
$routeFiles = (array) glob(__DIR__ . DIRECTORY_SEPARATOR . 'routes' . DIRECTORY_SEPARATOR . '*.php');
foreach($routeFiles as $routeFile) {
  require_once $routeFile;
}
$app->run();

routes/api.php:

// API group
$app->group('/api', function () use ($app) {

    // Library group
    $app->group('/library', function () use ($app) {

        // Get book with ID
        $app->get('/books/:id', function ($id) {

        });

        // Update book with ID
        $app->put('/books/:id', function ($id) {

        });

        // Delete book with ID
        $app->delete('/books/:id', function ($id) {

        });

    });

});

You can even do this for multiple levels, just be sure you don't overcomplicate yourself for this.

You can also do this for hooks off course.