allow string responses which are converted to Response objects

README.md

@@ -5,17 +5,16 @@ Silex is a simple web framework to develop simple websites:
 
     require_once __DIR__.'/silex.phar';
 
-    use Symfony\Component\HttpFoundation\Response;
     use Silex\Framework;
 
     $framework = new Framework(array(
         '/hello/:name' => function($name)
         {
-            return new Response('Hello '.$name);
+            return "Hello $name";
         },
         'GET|PUT|POST /goodbye/:name' => function($name)
         {
-            return new Response('Goodbye '.$name);
+            return "Goodbye $name";
         },
     ));
 

example.php

@@ -3,17 +3,16 @@
 require_once __DIR__.'/silex.phar';
 
 use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\HttpFoundation\Response;
 use Silex\Framework;
 
-$hello = function ($name)
+$hello = function($name)
 {
-    return new Response('Hello '.$name);
+    return "Hello $name";
 };
 
 $goodbye = function($name)
 {
-    return new Response('Goodbye '.$name);
+    return "Goodbye $name";
 };
 
 $framework = new Framework(array(

src/Silex/Framework.php

@@ -5,6 +5,7 @@ namespace Silex;
 use Symfony\Component\HttpKernel\HttpKernel;
 use Symfony\Component\HttpKernel\Controller\ControllerResolver;
 use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\EventDispatcher\EventDispatcher;
 use Symfony\Component\EventDispatcher\Event;
 use Symfony\Component\Routing\RouteCollection;
@@ -46,6 +47,7 @@ class Framework extends HttpKernel
 
         $dispatcher = new EventDispatcher();
         $dispatcher->connect('core.request', array($this, 'parseRequest'));
+        $dispatcher->connect('core.view', array($this, 'parseResponse'));
         $resolver = new ControllerResolver();
 
         parent::__construct($dispatcher, $resolver);
@@ -77,4 +79,15 @@ class Framework extends HttpKernel
 
         $request->attributes->add($attributes);
     }
+
+    public function parseResponse(Event $event, $response)
+    {
+        // convert return value into a response object
+        if (!$response instanceof Response)
+        {
+            return new Response((string) $response);
+        }
+
+        return $response;
+    }
 }