Replace the fluent PHP config format by the array-shape one

bundles/configuration.rst

@@ -23,11 +23,13 @@ as integration of other related components:
     .. code-block:: php
 
         // config/packages/framework.php
-        use Symfony\Config\FrameworkConfig;
+        namespace Symfony\Config;
 
-        return static function (FrameworkConfig $framework): void {
-            $framework->form()->enabled(true);
-        };
+        return [
+            new FrameworkConfig([
+                'form' => true,
+            ]),
+        ];
 
 There are two different ways of creating friendly configuration for a bundle:
 
@@ -148,13 +150,16 @@ can add some configuration that looks like this:
     .. code-block:: php
 
         // config/packages/acme_social.php
-        use Symfony\Config\AcmeSocialConfig;
-
-        return static function (AcmeSocialConfig $acmeSocial): void {
-            $acmeSocial->twitter()
-                ->clientId(123)
-                ->clientSecret('your_secret');
-        };
+        namespace Symfony\Config;
+
+        return [
+            new AcmeSocialConfig([
+                'twitter' => [
+                    'client_id' => 123,
+                    'client_secret' => 'your_secret',
+                ],
+            ]),
+        ];
 
 The basic idea is that instead of having the user override individual
 parameters, you let the user configure just a few, specifically created,

bundles/prepend_extension.rst

@@ -111,19 +111,19 @@ registered and the ``entity_manager_name`` setting for ``acme_hello`` is set to
     .. code-block:: php
 
         // config/packages/acme_something.php
-        namespace Symfony\Component\DependencyInjection\Loader\Configurator;
+        namespace Symfony\Config;
 
-        return static function (ContainerConfigurator $container): void {
-            $container->extension('acme_something', [
+        return [
+            new AcmeSomethingConfig([
                 // ...
                 'use_acme_goodbye' => false,
                 'entity_manager_name' => 'non_default',
-            ]);
-            $container->extension('acme_other', [
+            ]),
+            new AcmeOtherConfig([
                 // ...
                 'use_acme_goodbye' => false,
-            ]);
-        };
+            ]),
+        ];
 
 Prepending Extension in the Bundle Class
 ----------------------------------------