minor #20923 Add PHP config support for routing (alamirault)

This PR was merged into the 7.3 branch.

Discussion
----------

Add PHP config support for routing

Fix #20921

I added type `php` exlicitly. I think perf are better, (PhpFileLoader is used). Tell me if it's ok or not

Commits
-------

40a99ac Add PHP config support for routing

Author: javiereguiluz

configuration/micro_kernel_trait.rst

@@ -297,8 +297,8 @@ Now it looks like this::
         {
             // import the WebProfilerRoutes, only if the bundle is enabled
             if (isset($this->bundles['WebProfilerBundle'])) {
-                $routes->import('@WebProfilerBundle/Resources/config/routing/wdt.xml')->prefix('/_wdt');
-                $routes->import('@WebProfilerBundle/Resources/config/routing/profiler.xml')->prefix('/_profiler');
+                $routes->import('@WebProfilerBundle/Resources/config/routing/wdt.php', 'php')->prefix('/_wdt');
+                $routes->import('@WebProfilerBundle/Resources/config/routing/profiler.php', 'php')->prefix('/_profiler');
             }
 
             // load the routes defined as PHP attributes
@@ -310,6 +310,12 @@ Now it looks like this::
         // to override the default locations for these directories
     }
 
+
+.. versionadded:: 7.3
+
+    The ``wdt.php`` and ``profiler.php`` files were introduced in Symfony 7.3.
+    Previously, you had to import ``wdt.xml`` and ``profiler.xml``
+
 Before continuing, run this command to add support for the new dependencies:
 
 .. code-block:: terminal

controller/error_pages.rst

@@ -154,7 +154,8 @@ automatically when installing ``symfony/framework-bundle``):
         # config/routes/framework.yaml
         when@dev:
             _errors:
-                resource: '@FrameworkBundle/Resources/config/routing/errors.xml'
+                resource: '@FrameworkBundle/Resources/config/routing/errors.php'
+                type:     php
                 prefix:   /_error
 
     .. code-block:: xml
@@ -167,7 +168,7 @@ automatically when installing ``symfony/framework-bundle``):
                 https://symfony.com/schema/routing/routing-1.0.xsd">
 
             <when env="dev">
-                <import resource="@FrameworkBundle/Resources/config/routing/errors.xml" prefix="/_error"/>
+                <import resource="@FrameworkBundle/Resources/config/routing/errors.php" type="php" prefix="/_error"/>
             </when>
         </routes>
 
@@ -178,7 +179,7 @@ automatically when installing ``symfony/framework-bundle``):
 
         return function (RoutingConfigurator $routes): void {
             if ('dev' === $routes->env()) {
-                $routes->import('@FrameworkBundle/Resources/config/routing/errors.xml')
+                $routes->import('@FrameworkBundle/Resources/config/routing/errors.php', 'php')
                     ->prefix('/_error')
                 ;
             }
@@ -191,6 +192,11 @@ need to replace ``http://localhost/`` by the host used in your local setup):
 * ``http://localhost/_error/{statusCode}`` for HTML
 * ``http://localhost/_error/{statusCode}.{format}`` for any other format
 
+.. versionadded:: 7.3
+
+    The ``errors.php`` file was introduced in Symfony 7.3.
+    Previously, you had to import ``errors.xml``
+
 .. _overriding-non-html-error-output:
 
 Overriding Error output for non-HTML formats