Add missing php tags (sonata-project#5192)

It is necessary to get syntax highlighting in docs.

docs/cookbook/recipe_creating_an_admin_with_annotations.rst

@@ -22,6 +22,8 @@ like in the `getting started chapter`_:
 
 .. code-block:: php
 
+    <?php
+
     namespace App\Entity;
 
     use Doctrine\ORM\Mapping as ORM;
@@ -59,6 +61,8 @@ like in the `getting started chapter`_:
 
 .. code-block:: php
 
+    <?php
+
     namespace App\Entity;
 
     use Doctrine\ORM\Mapping as ORM;

docs/cookbook/recipe_custom_action.rst

@@ -133,6 +133,8 @@ If you want to add the current filter parameters to the redirect url you can add
 
 .. code-block:: php
 
+    <?php
+
     return new RedirectResponse($this->admin->generateUrl('list', ['filter' => $this->admin->getFilterParameters()]));
 
 .. tip::
@@ -172,6 +174,8 @@ You have to add the new route in ``configureRoutes``:
 
 .. code-block:: php
 
+    <?php
+
     // ...
     use Sonata\AdminBundle\Route\RouteCollection;
 
@@ -187,6 +191,8 @@ Next we have to add the action in ``configureListFields`` specifying the templat
 
 .. code-block:: php
 
+    <?php
+
     protected function configureListFields(ListMapper $listMapper)
     {
         $listMapper
@@ -282,6 +288,8 @@ Custom Action without Entity
 Creating an action that is not connected to an Entity is also possible.
 Let's imagine we have an import action. We register our route::
 
+    <?php
+
     // ...
     use Sonata\AdminBundle\Route\RouteCollection;
 
@@ -292,6 +300,8 @@ Let's imagine we have an import action. We register our route::
 
 We add the controller action::
 
+    <?php
+
     use Sonata\AdminBundle\Controller\CRUDController as Controller;
     use Symfony\Component\HttpFoundation\Request;
 
@@ -306,6 +316,8 @@ Now, instead of adding the action to the form mapper, we can add it next to
 the add button. In your admin class, overwrite the ``configureActionButtons``
 method::
 
+    <?php
+
     public function configureActionButtons($action, $object = null)
     {
         $list = parent::configureActionButtons($action, $object);
@@ -329,6 +341,8 @@ You can also add this action to your dashboard actions, you have to overwrite
 the ``getDashboardActions`` method in your admin class and there are two
 ways you can add action::
 
+    <?php
+
     public function getDashboardActions()
     {
         $actions = parent::getDashboardActions();
@@ -348,6 +362,8 @@ Create a template for that button:
 
 Or you can just pass values as array::
 
+    <?php
+
     public function getDashboardActions()
     {
         $actions = parent::getDashboardActions();

docs/cookbook/recipe_delete_field_group.rst

@@ -7,6 +7,8 @@ field by hand, using the ``FormMapper``s ``remove`` method.
 
     .. code-block:: php
 
+        <?php
+
         use Sonata\UserBundle\Admin\Model\UserAdmin as SonataUserAdmin;
 
         class UserAdmin extends SonataUserAdmin
@@ -34,6 +36,8 @@ of a whole form group: ``removeGroup``.
 
     .. code-block:: php
 
+        <?php
+
         use Sonata\UserBundle\Admin\Model\UserAdmin as SonataUserAdmin;
 
         class UserAdmin extends SonataUserAdmin

docs/cookbook/recipe_image_previews.rst

@@ -46,6 +46,8 @@ we are manipulating form fields we do this from within ``ImageAdmin::configureFo
 
 .. code-block:: php
 
+    <?php
+
     class ImageAdmin extends AbstractAdmin
     {
         protected function configureFormFields(FormMapper $formMapper)
@@ -95,6 +97,8 @@ Admin class is embedded and use a different method:
 
 .. code-block:: php
 
+    <?php
+
     class ImageAdmin extends AbstractAdmin
     {
         protected function configureFormFields(FormMapper $formMapper)

docs/cookbook/recipe_knp_menu.rst

@@ -17,6 +17,8 @@ To add a custom controller entry in the admin menu:
 
 Create your controller::
 
+    <?php
+
     class BlogController
     {
         /**

docs/cookbook/recipe_select2.rst

@@ -33,6 +33,8 @@ To disable select2 on some ``select`` form element, set data attribute ``data-so
 
 .. code-block:: php
 
+    <?php
+
     use Sonata\AdminBundle\Form\Type\ModelType;
 
     public function configureFormFields(FormMapper $formMapper)
@@ -59,6 +61,8 @@ to enable ``allowClear`` or ``data-sonata-select2-allow-clear = "false"`` to dis
 
 .. code-block:: php
 
+    <?php
+
     use Sonata\AdminBundle\Form\Type\ModelType;
 
     public function configureFormFields(FormMapper $formMapper)

docs/cookbook/recipe_sonata_admin_without_user_bundle.rst

@@ -31,6 +31,8 @@ This represents your security user, you can read more about it `here <http://sym
 
 .. code-block:: php
 
+    <?php
+
     namespace App\Entity;
 
     use Doctrine\ORM\Mapping as ORM;
@@ -74,6 +76,8 @@ more about it `here <http://symfony.com/doc/current/security/custom_provider.htm
 
 .. code-block:: php
 
+    <?php
+
     namespace App\Security;
 
     use App\Entity\User;
@@ -144,6 +148,8 @@ A small login form that will basically just validate our data:
 
 .. code-block:: php
 
+    <?php
+
     namespace App\Form;
 
     use Symfony\Component\Form\AbstractType;
@@ -169,6 +175,8 @@ more about it `here <https://symfony.com/doc/current/security/guard_authenticati
 
 .. code-block:: php
 
+    <?php
+
     namespace App\Security;
 
     use App\Form\AdminLoginForm;
@@ -282,6 +290,8 @@ this will be handled by Symfony, but we still need to register that route.
 
 .. code-block:: php
 
+    <?php
+
     namespace App\Controller;
 
     use Symfony\Bundle\FrameworkBundle\Controller\Controller;

docs/cookbook/recipe_sortable_listing.rst

@@ -43,6 +43,8 @@ First of all we are going to add a position field in our ``Client`` entity.
 
 .. code-block:: php
 
+    <?php
+
     /**
      * @Gedmo\SortablePosition
      * @ORM\Column(name="position", type="integer")
@@ -79,6 +81,8 @@ and use the default twig template provided in the ``pixSortableBehaviorBundle``
 
 .. code-block:: php
 
+    <?php
+
     $listMapper
         ->add('_action', null, [
             'actions' => [

docs/cookbook/recipe_sortable_sonata_type_model.rst

@@ -97,6 +97,8 @@ Part 2 : Update the data model entities
 
 Update the ``UserBundle\Entity\User.php`` entity with the following::
 
+    <?php
+
     // ...
 
     /**
@@ -158,6 +160,8 @@ Update the ``UserBundle\Entity\User.php`` entity with the following::
 
 Update the ``UserBundle\Entity\Expectation.php`` entity with the following::
 
+    <?php
+
     // ...
 
     /**
@@ -353,6 +357,8 @@ Now update the ``UserBundle\Admin\UserAdmin.php`` by adding the ``sonata_type_mo
 
 .. code-block:: php
 
+    <?php
+
     /**
      * {@inheritdoc}
      */