Silex Class does not exist - Controller

Question

I start on Silex and I can not link my roads to my controllers. I looked at several examples and posts but I blocked, nothing worked.

Currently I have this:

In my index.php

<?php
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
require_once __DIR__.'/../vendor/autoload.php';


$app = new Silex\Application();
$app['debug'] = true;
$app->register(new Silex\Provider\ServiceControllerServiceProvider());
Request::enableHttpMethodParameterOverride();
$app->get("/", "Silex\Controllers\MainController::index");
$app->run();

In my composer.json

{
"require": {
    "silex/silex": "~2.0",
    "ddesrosiers/silex-annotation-provider": "dev-master"
},
"autoload": {
    "psr-4": {
        "Silex\\": "silex/"
    }
}
}

And my controller :

    <?php

namespace Silex\Controllers;

use Silex\Application;

class MainController implements \Silex\ControllerProviderInterface { 

    public function index()
    {
        return new Response('Thank you for your feedback!', 201);
    }
}

I don't know if it's important but the url of my project is "silex/".

Can you tell me what is wrong in this code ? Thank you !

Answer 1

According to your file structure path to your Silex namespace should be ""

"autoload": {
    "psr-4": {
        "Silex\\": ""
    }
}

---

It will be better not to use this namespace because it is used by silex framework, that is installed by composer. You can rename it to something else, for example to App.

"autoload": {
    "psr-4": {
        "App\\": ""
    }
}

...

<?php
namespace App\Controllers;

use Silex\Application;

class MainController implements \Silex\ControllerProviderInterface { 

...

$app->get("/", "App\Controllers\MainController::index");

Answer 2

You are using silex 2. Some namespaces have changed.

Instead of \Silex\ControllerProviderInterface you should use Silex\Api\ControllerProviderInterface