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Organizing ControllersΒΆ

When your application starts to define too many controllers, you might want to group them logically:

// define controllers for a blog
$blog = $app['controllers_factory'];
$blog->get('/', function () {
    return 'Blog home page';
// ...

// define controllers for a forum
$forum = $app['controllers_factory'];
$forum->get('/', function () {
    return 'Forum home page';

// define "global" controllers
$app->get('/', function () {
    return 'Main home page';

$app->mount('/blog', $blog);
$app->mount('/forum', $forum);

// define controllers for an admin
$app->mount('/admin', function ($admin) {
    // recursively mount
    $admin->mount('/blog', function ($user) {
        $user->get('/', function () {
            return 'Admin Blog home page';


$app['controllers_factory'] is a factory that returns a new instance of ControllerCollection when used.

mount() prefixes all routes with the given prefix and merges them into the main Application. So, / will map to the main home page, /blog/ to the blog home page, /forum/ to the forum home page, and /admin/blog/ to the admin blog home page.


When mounting a route collection under /blog, it is not possible to define a route for the /blog URL. The shortest possible URL is /blog/.


When calling get(), match(), or any other HTTP methods on the Application, you are in fact calling them on a default instance of ControllerCollection (stored in $app['controllers']).

Another benefit is the ability to apply settings on a set of controllers very easily. Building on the example from the middleware section, here is how you would secure all controllers for the backend collection:

$backend = $app['controllers_factory'];

// ensure that all controllers require logged-in users


For a better readability, you can split each controller collection into a separate file:

// blog.php
$blog = $app['controllers_factory'];
$blog->get('/', function () { return 'Blog home page'; });

return $blog;

// app.php
$app->mount('/blog', include 'blog.php');

Instead of requiring a file, you can also create a Controller provider.

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