php - 在 Controller 中找不到接口(interface) 'Silex\ControllerProviderInterface'

Question

执行api.php时:

Fatal error: Interface 'Silex\ControllerProviderInterface' not found in C:\xampp\htdocs\lab\src\Api\UserController.php on line 9

Composer :

{
    "require": {
        "silex/silex": "^2.0"
    },
    "autoload": {
        "psr-4": {
            "Api\\": "src/Api"
        }
    }
}

api.php :

<?php
require_once __DIR__.'/vendor/autoload.php';
$app = new Silex\Application();

$app['debug'] = true;

$app->mount('/', new Api\UserController());

$app->run();

src/Api/UserController.php :

<?php
namespace Api;

use Symfony\Component\HttpFoundation\Request;
use Silex\Application;
use Silex\ControllerProviderInterface;

class UserController implements ControllerProviderInterface {

  public function connect(Application $app) {
    $factory=$app['controllers_factory'];
    $factory->get('/','Api\UserController::home');
    return $factory;
  }

  public function home() {
    return 'Hello world';
  }

}

文件的组织方式:

root folder
- composer.json
- api.php
-  src 
        - Api
              - UserController.php
- vendor (with silex files)

Silex 由 composer 安装 composer require silex/silex * at root folder.

Answer 1

Silex 2.0 引入了一些 BC 中断。其中之一是创建 Silex\Api namespace where the ControllerProviderInterface resides now .

所以你必须重构你的用户 Controller :

<?php
namespace Api;

use Symfony\Component\HttpFoundation\Request;
use Silex\Application;
use Silex\Api\ControllerProviderInterface;
//       ^^^^^

class UserController implements ControllerProviderInterface {
// ...