minor #7839 Add annotation examples to match a route based on the host (bocharsky-bw)

This PR was merged into the 2.7 branch.

Discussion
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Add annotation examples to match a route based on the host

There's no any example with PHP annotations currently.

Commits
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f96aef0 Add annotation examples to match a route based on the host

Author: xabbuh

routing/hostname_pattern.rst

@@ -8,6 +8,33 @@ You can also match on the HTTP *host* of the incoming request.
 
 .. configuration-block::
 
+    .. code-block:: php-annotations
+
+        // src/Acme/DemoBundle/Controller/MainController.php
+        namespace Acme\DemoBundle\Controller;
+
+        use Symfony\Bundle\FrameworkBundle\Controller\Controller;
+        use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
+
+        class MainController extends Controller
+        {
+            /**
+             * @Route("/", name="mobile_homepage", host="m.example.com")
+             */
+            public function mobileHomepageAction()
+            {
+                // ...
+            }
+
+            /**
+             * @Route("/", name="homepage")
+             */
+            public function homepageAction()
+            {
+                // ...
+            }
+        }
+
     .. code-block:: yaml
 
         mobile_homepage:
@@ -63,12 +90,39 @@ you can use placeholders in your hostname:
 
 .. configuration-block::
 
+    .. code-block:: php-annotations
+
+        // src/Acme/DemoBundle/Controller/MainController.php
+        namespace Acme\DemoBundle\Controller;
+
+        use Symfony\Bundle\FrameworkBundle\Controller\Controller;
+        use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
+
+        class MainController extends Controller
+        {
+            /**
+             * @Route("/", name="projects_homepage", host="{project_name}.example.com")
+             */
+            public function projectsHomepageAction()
+            {
+                // ...
+            }
+
+            /**
+             * @Route("/", name="homepage")
+             */
+            public function homepageAction()
+            {
+                // ...
+            }
+        }
+
     .. code-block:: yaml
 
         projects_homepage:
             path:     /
             host:     "{project_name}.example.com"
-            defaults: { _controller: AcmeDemoBundle:Main:mobileHomepage }
+            defaults: { _controller: AcmeDemoBundle:Main:projectsHomepage }
 
         homepage:
             path:     /
@@ -83,7 +137,7 @@ you can use placeholders in your hostname:
                 http://symfony.com/schema/routing/routing-1.0.xsd">
 
             <route id="projects_homepage" path="/" host="{project_name}.example.com">
-                <default key="_controller">AcmeDemoBundle:Main:mobileHomepage</default>
+                <default key="_controller">AcmeDemoBundle:Main:projectsHomepage</default>
             </route>
 
             <route id="homepage" path="/">
@@ -98,7 +152,7 @@ you can use placeholders in your hostname:
 
         $collection = new RouteCollection();
         $collection->add('project_homepage', new Route('/', array(
-            '_controller' => 'AcmeDemoBundle:Main:mobileHomepage',
+            '_controller' => 'AcmeDemoBundle:Main:projectsHomepage',
         ), array(), array(), '{project_name}.example.com'));
 
         $collection->add('homepage', new Route('/', array(
@@ -113,6 +167,39 @@ instance, if you want to match both ``m.example.com`` and
 
 .. configuration-block::
 
+    .. code-block:: php-annotations
+
+        // src/Acme/DemoBundle/Controller/MainController.php
+        namespace Acme\DemoBundle\Controller;
+
+        use Symfony\Bundle\FrameworkBundle\Controller\Controller;
+        use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
+
+        class MainController extends Controller
+        {
+            /**
+             * @Route(
+             *     "/",
+             *     name="mobile_homepage",
+             *     host="{subdomain}.example.com",
+             *     defaults={"subdomain"="m"},
+             *     requirements={"subdomain"="m|mobile"}
+             * )
+             */
+            public function mobileHomepageAction()
+            {
+                // ...
+            }
+
+            /**
+             * @Route("/", name="homepage")
+             */
+            public function homepageAction()
+            {
+                // ...
+            }
+        }
+
     .. code-block:: yaml
 
         mobile_homepage:
@@ -173,6 +260,39 @@ instance, if you want to match both ``m.example.com`` and
 
     .. configuration-block::
 
+        .. code-block:: php-annotations
+
+            // src/Acme/DemoBundle/Controller/MainController.php
+            namespace Acme\DemoBundle\Controller;
+
+            use Symfony\Bundle\FrameworkBundle\Controller\Controller;
+            use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
+
+            class MainController extends Controller
+            {
+                /**
+                 * @Route(
+                 *     "/",
+                 *     name="mobile_homepage",
+                 *     host="m.{domain}",
+                 *     defaults={"domain"="%domain%"},
+                 *     requirements={"domain"="%domain%"}
+                 * )
+                 */
+                public function mobileHomepageAction()
+                {
+                    // ...
+                }
+
+                /**
+                 * @Route("/", name="homepage")
+                 */
+                public function homepageAction()
+                {
+                    // ...
+                }
+            }
+
         .. code-block:: yaml
 
             mobile_homepage:
@@ -241,6 +361,22 @@ You can also set the host option on imported routes:
 
 .. configuration-block::
 
+    .. code-block:: php-annotations
+
+        // src/Acme/HelloBundle/Controller/MainController.php
+        namespace Acme\HelloBundle\Controller;
+
+        use Symfony\Bundle\FrameworkBundle\Controller\Controller;
+        use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
+
+        /**
+         * @Route(host="hello.example.com")
+         */
+        class MainController extends Controller
+        {
+            // ...
+        }
+
     .. code-block:: yaml
 
         acme_hello: