Add property types and return types in a few places

bundles/best_practices.rst

@@ -436,7 +436,7 @@ The end user can provide values in any configuration file:
         // config/services.php
         namespace Symfony\Component\DependencyInjection\Loader\Configurator;
 
-        return static function (ContainerConfigurator $container) {
+        return static function (ContainerConfigurator $container): void {
             $container->parameters()
                 ->set('acme_blog.author.email', '[email protected]')
             ;

bundles/configuration.rst

@@ -42,7 +42,7 @@ as integration of other related components:
         // config/packages/framework.php
         use Symfony\Config\FrameworkConfig;
 
-        return static function (FrameworkConfig $framework) {
+        return static function (FrameworkConfig $framework): void {
             $framework->form()->enabled(true);
         };
 

bundles/prepend_extension.rst

@@ -139,7 +139,7 @@ registered and the ``entity_manager_name`` setting for ``acme_hello`` is set to
         // config/packages/acme_something.php
         namespace Symfony\Component\DependencyInjection\Loader\Configurator;
 
-        return static function (ContainerConfigurator $container) {
+        return static function (ContainerConfigurator $container): void {
             $container->extension('acme_something', [
                 // ...
                 'use_acme_goodbye' => false,

cache.rst

@@ -85,7 +85,7 @@ adapter (template) they use by using the ``app`` and ``system`` key like:
         // config/packages/cache.php
         use Symfony\Config\FrameworkConfig;
 
-        return static function (FrameworkConfig $framework) {
+        return static function (FrameworkConfig $framework): void {
             $framework->cache()
                 ->app('cache.adapter.filesystem')
                 ->system('cache.adapter.system')
@@ -163,7 +163,7 @@ will create pools with service IDs that follow the pattern ``cache.[type]``.
         // config/packages/cache.php
         use Symfony\Config\FrameworkConfig;
 
-        return static function (FrameworkConfig $framework) {
+        return static function (FrameworkConfig $framework): void {
             $framework->cache()
                 // Only used with cache.adapter.filesystem
                 ->directory('%kernel.cache_dir%/pools')
@@ -264,7 +264,7 @@ You can also create more customized pools:
         // config/packages/cache.php
         use Symfony\Config\FrameworkConfig;
 
-        return static function (FrameworkConfig $framework) {
+        return static function (FrameworkConfig $framework): void {
             $cache = $framework->cache();
             $cache->defaultMemcachedProvider('memcached://localhost');
 
@@ -444,7 +444,7 @@ and use that when configuring the pool.
         use Symfony\Component\DependencyInjection\ContainerBuilder;
         use Symfony\Config\FrameworkConfig;
 
-        return static function (ContainerBuilder $container, FrameworkConfig $framework) {
+        return static function (ContainerBuilder $container, FrameworkConfig $framework): void {
             $framework->cache()
                 ->pool('cache.my_redis')
                     ->adapters(['cache.adapter.redis'])
@@ -524,7 +524,7 @@ Symfony stores the item automatically in all the missing pools.
         // config/packages/cache.php
         use Symfony\Config\FrameworkConfig;
 
-        return static function (FrameworkConfig $framework) {
+        return static function (FrameworkConfig $framework): void {
             $framework->cache()
                 ->pool('my_cache_pool')
                     ->defaultLifetime(31536000) // One year
@@ -616,7 +616,7 @@ to enable this feature. This could be added by using the following configuration
         // config/packages/cache.php
         use Symfony\Config\FrameworkConfig;
 
-        return static function (FrameworkConfig $framework) {
+        return static function (FrameworkConfig $framework): void {
             $framework->cache()
                 ->pool('my_cache_pool')
                     ->tags(true)
@@ -670,7 +670,7 @@ achieved by specifying the adapter.
         // config/packages/cache.php
         use Symfony\Config\FrameworkConfig;
 
-        return static function (FrameworkConfig $framework) {
+        return static function (FrameworkConfig $framework): void {
             $framework->cache()
                 ->pool('my_cache_pool')
                     ->tags('tag_pool')

components/dependency_injection.rst

@@ -313,7 +313,7 @@ config files:
 
         namespace Symfony\Component\DependencyInjection\Loader\Configurator;
 
-        return static function (ContainerConfigurator $container) {
+        return static function (ContainerConfigurator $container): void {
             $container->parameters()
                 // ...
                 ->set('mailer.transport', 'sendmail')

components/dependency_injection/_imports-parameters-note.rst.inc

@@ -31,6 +31,6 @@
             // config/services.php
             namespace Symfony\Component\DependencyInjection\Loader\Configurator;
 
-            return static function (ContainerConfigurator $container) {
+            return static function (ContainerConfigurator $container): void {
                 $container->import('%kernel.project_dir%/somefile.yaml');
             };

components/expression_language.rst

@@ -107,7 +107,7 @@ PHP type (including objects)::
 
     class Apple
     {
-        public $variety;
+        public string $variety;
     }
 
     $apple = new Apple();

components/property_access.rst

@@ -177,7 +177,7 @@ method::
     // ...
     class Person
     {
-        public $name;
+        public string $name;
     }
 
     $person = new Person();
@@ -321,26 +321,26 @@ can use setters, the magic ``__set()`` method or properties to set values::
     // ...
     class Person
     {
-        public $firstName;
-        private $lastName;
-        private $children = [];
+        public string $firstName;
+        private string $lastName;
+        private array $children = [];
 
-        public function setLastName($name)
+        public function setLastName($name): void
         {
             $this->lastName = $name;
         }
 
-        public function getLastName()
+        public function getLastName(): string
         {
             return $this->lastName;
         }
 
-        public function getChildren()
+        public function getChildren(): array
         {
             return $this->children;
         }
 
-        public function __set($property, $value)
+        public function __set($property, $value): void
         {
             $this->$property = $value;
         }
@@ -507,15 +507,15 @@ You can also mix objects and arrays::
     // ...
     class Person
     {
-        public $firstName;
-        private $children = [];
+        public string $firstName;
+        private array $children = [];
 
-        public function setChildren($children)
+        public function setChildren($children): void
         {
             $this->children = $children;
         }
 
-        public function getChildren()
+        public function getChildren(): array
         {
             return $this->children;
         }

components/serializer.rst

@@ -398,15 +398,15 @@ It is also possible to serialize only a set of specific attributes::
 
     class User
     {
-        public $familyName;
-        public $givenName;
-        public $company;
+        public string $familyName;
+        public string $givenName;
+        public string $company;
     }
 
     class Company
     {
-        public $name;
-        public $address;
+        public string $name;
+        public string $address;
     }
 
     $company = new Company();
@@ -529,8 +529,8 @@ Given you have the following object::
 
     class Company
     {
-        public $name;
-        public $address;
+        public string $name;
+        public string $address;
     }
 
 And in the serialized form, all attributes must be prefixed by ``org_`` like
@@ -925,7 +925,7 @@ faster alternative to the
 
         use Symfony\Component\Serializer\Normalizer\GetSetMethodNormalizer;
 
-        return static function (ContainerConfigurator $container) {
+        return static function (ContainerConfigurator $container): void {
             $container->services()
                 // ...
                 ->set('get_set_method_normalizer', GetSetMethodNormalizer::class)

components/var_dumper.rst

@@ -144,7 +144,7 @@ the :ref:`dump_destination option <configuration-debug-dump_destination>` of the
         // config/packages/debug.php
         namespace Symfony\Component\DependencyInjection\Loader\Configurator;
 
-        return static function (ContainerConfigurator $container) {
+        return static function (ContainerConfigurator $container): void {
             $container->extension('debug', [
                 'dump_destination' => 'tcp://%env(VAR_DUMPER_SERVER)%',
             ]);

configuration.rst

@@ -136,7 +136,7 @@ configuration files, even if they use a different format:
         // config/services.php
         namespace Symfony\Component\DependencyInjection\Loader\Configurator;
 
-        return static function (ContainerConfigurator $container) {
+        return static function (ContainerConfigurator $container): void {
             $container->import('legacy_config.php');
 
             // glob expressions are also supported to load multiple files
@@ -242,7 +242,7 @@ reusable configuration value. By convention, parameters are defined under the
         use App\Entity\BlogPost;
         use App\Enum\PostState;
 
-        return static function (ContainerConfigurator $container) {
+        return static function (ContainerConfigurator $container): void {
             $container->parameters()
                 // the parameter name is an arbitrary string (the 'app.' prefix is recommended
                 // to better differentiate your parameters from Symfony parameters).
@@ -321,7 +321,7 @@ configuration file using a special syntax: wrap the parameter name in two ``%``
         // config/packages/some_package.php
         namespace Symfony\Component\DependencyInjection\Loader\Configurator;
 
-        return static function (ContainerConfigurator $container) {
+        return static function (ContainerConfigurator $container): void {
             $container->extension('some_package', [
                 // any string surrounded by two % is replaced by that parameter value
                 'email_address' => '%app.admin_email%',
@@ -358,7 +358,7 @@ configuration file using a special syntax: wrap the parameter name in two ``%``
             // config/services.php
             namespace Symfony\Component\DependencyInjection\Loader\Configurator;
 
-            return static function (ContainerConfigurator $container) {
+            return static function (ContainerConfigurator $container): void {
                 $container->parameters()
                     ->set('url_pattern', 'http://symfony.com/?foo=%%s&bar=%%d');
             };
@@ -620,7 +620,7 @@ This example shows how you could configure the application secret using an env v
         // config/packages/framework.php
         namespace Symfony\Component\DependencyInjection\Loader\Configurator;
 
-        return static function (ContainerConfigurator $container) {
+        return static function (ContainerConfigurator $container): void {
             $container->extension('framework', [
                 // by convention the env var names are always uppercase
                 'secret' => '%env(APP_SECRET)%',
@@ -973,7 +973,7 @@ doesn't work for parameters:
 
         use App\Service\MessageGenerator;
 
-        return static function (ContainerConfigurator $container) {
+        return static function (ContainerConfigurator $container): void {
             $container->parameters()
                 ->set('app.contents_dir', '...');
 
@@ -1030,7 +1030,7 @@ whenever a service/controller defines a ``$projectDir`` argument, use this:
 
         use App\Controller\LuckyController;
 
-        return static function (ContainerConfigurator $container) {
+        return static function (ContainerConfigurator $container): void {
             $container->services()
                 ->defaults()
                     // pass this value to any $projectDir argument for any service

configuration/env_var_processors.rst

@@ -45,7 +45,7 @@ processor to turn the value of the ``HTTP_PORT`` env var into an integer:
 
         use Symfony\Config\FrameworkConfig;
 
-        return static function (FrameworkConfig $framework) {
+        return static function (FrameworkConfig $framework): void {
             $framework->router()
                 ->httpPort('%env(int:HTTP_PORT)%')
                 // or
@@ -98,7 +98,7 @@ Symfony provides the following env var processors:
             use Symfony\Component\DependencyInjection\ContainerBuilder;
             use Symfony\Config\FrameworkConfig;
 
-            return static function (ContainerBuilder $container, FrameworkConfig $framework) {
+            return static function (ContainerBuilder $container, FrameworkConfig $framework): void {
                 $container->setParameter('env(SECRET)', 'some_secret');
                 $framework->secret(env('SECRET')->string());
             };
@@ -144,7 +144,7 @@ Symfony provides the following env var processors:
             use Symfony\Component\DependencyInjection\ContainerBuilder;
             use Symfony\Config\FrameworkConfig;
 
-            return static function (ContainerBuilder $container, FrameworkConfig $framework) {
+            return static function (ContainerBuilder $container, FrameworkConfig $framework): void {
                 $container->setParameter('env(HTTP_METHOD_OVERRIDE)', 'true');
                 $framework->httpMethodOverride(env('HTTP_METHOD_OVERRIDE')->bool());
             };
@@ -231,7 +231,7 @@ Symfony provides the following env var processors:
             use Symfony\Component\DependencyInjection\ContainerBuilder;
             use Symfony\Config\SecurityConfig;
 
-            return static function (ContainerBuilder $container, SecurityConfig $security) {
+            return static function (ContainerBuilder $container, SecurityConfig $security): void {
                 $container->setParameter('env(HEALTH_CHECK_METHOD)', 'Symfony\Component\HttpFoundation\Request::METHOD_HEAD');
                 $security->accessControl()
                     ->path('^/health-check$')
@@ -280,7 +280,7 @@ Symfony provides the following env var processors:
             use Symfony\Component\DependencyInjection\ContainerBuilder;
             use Symfony\Config\FrameworkConfig;
 
-            return static function (ContainerBuilder $container) {
+            return static function (ContainerBuilder $container): void {
                 $container->setParameter('env(ALLOWED_LANGUAGES)', '["en","de","es"]');
                 $container->setParameter('app_allowed_languages', '%env(json:ALLOWED_LANGUAGES)%');
             };
@@ -364,7 +364,7 @@ Symfony provides the following env var processors:
             use Symfony\Component\DependencyInjection\ContainerBuilder;
             use Symfony\Config\FrameworkConfig;
 
-            return static function (ContainerBuilder $container) {
+            return static function (ContainerBuilder $container): void {
                 $container->setParameter('env(ALLOWED_LANGUAGES)', 'en,de,es');
                 $container->setParameter('app_allowed_languages', '%env(csv:ALLOWED_LANGUAGES)%');
             };

configuration/micro_kernel_trait.rst

@@ -369,7 +369,7 @@ because the configuration started to get bigger:
         // config/framework.php
         use Symfony\Config\FrameworkConfig;
 
-        return static function (FrameworkConfig $framework) {
+        return static function (FrameworkConfig $framework): void {
             $framework
                 ->secret('SOME_SECRET')
                 ->profiler()

configuration/override_dir_structure.rst

@@ -67,7 +67,7 @@ Console script::
 Web front-controller::
 
     // public/index.php
-    
+
     // ...
     $_SERVER['APP_RUNTIME_OPTIONS']['dotenv_path'] = 'another/custom/path/to/.env';
 
@@ -236,7 +236,7 @@ configuration option to define your own translations directory (use :ref:`framew
         // config/packages/translation.php
         use Symfony\Config\FrameworkConfig;
 
-        return static function (FrameworkConfig $framework) {
+        return static function (FrameworkConfig $framework): void {
             $framework->translator()
                 ->defaultPath('%kernel.project_dir%/i18n')
             ;

configuration/secrets.rst

@@ -309,7 +309,7 @@ The secrets system is enabled by default and some of its behavior can be configu
         // config/packages/framework.php
         use Symfony\Config\FrameworkConfig;
 
-        return static function (FrameworkConfig $framework) {
+        return static function (FrameworkConfig $framework): void {
             $framework->secrets()
                 // ->vaultDirectory('%kernel.project_dir%/config/secrets/%kernel.environment%')
                 // ->localDotenvFile('%kernel.project_dir%/.env.%kernel.environment%.local')

controller/error_pages.rst

@@ -277,7 +277,7 @@ configuration option to point to it:
         // config/packages/framework.php
         use Symfony\Config\FrameworkConfig;
 
-        return static function (FrameworkConfig $framework) {
+        return static function (FrameworkConfig $framework): void {
             // ...
             $framework->errorController('App\Controller\ErrorController::show');
         };

controller/upload_file.rst

@@ -312,7 +312,7 @@ Then, define a service for this class:
 
         use App\Service\FileUploader;
 
-        return static function (ContainerConfigurator $container) {
+        return static function (ContainerConfigurator $container): void {
             $services = $container->services();
 
             $services->set(FileUploader::class)