Merge branch '4.4' into 5.3

* 4.4:
  Correct spelling & grammar in 4.4 testing.rst
  Correct spelling & grammar in 4.4 controller/
  Correct spelling & grammar in 4.4 configuration/
  Correct spelling & grammar in 4.4 components/yaml/
  Correct spelling & grammar in 4.4 components/security/
  Correct spelling & grammar in 4.4 components/http_foundation/
  Correct spelling & grammar in 4.4 components/cache/
  Correct spelling & grammar in 4.4 logging.rst
  Correct spelling & grammar in 4.4 lock.rst
  Correct spelling & grammar in 4.4 http_client.rst
  Correct spelling & grammar in 4.4 http_cache.rst

components/cache/adapters/php_array_cache_adapter.rst

@@ -7,7 +7,7 @@ PHP Array Cache Adapter
 
 This adapter is a high performance cache for static data (e.g. application configuration)
 that is optimized and preloaded into OPcache memory storage. It is suited for any data that
-is mostly read-only after warmup::
+is mostly read-only after warm-up::
 
     use Symfony\Component\Cache\Adapter\FilesystemAdapter;
     use Symfony\Component\Cache\Adapter\PhpArrayAdapter;
@@ -23,7 +23,7 @@ is mostly read-only after warmup::
         $cache = new PhpArrayAdapter(
             // single file where values are cached
             __DIR__ . '/somefile.cache',
-            // a backup adapter, if you set values after warmup
+            // a backup adapter, if you set values after warm-up
             new FilesystemAdapter()
         );
         $cache->warmUp($values);

components/cache/adapters/redis_adapter.rst

@@ -205,7 +205,7 @@ try to add data when no memory is available. An example setting could look as fo
     maxmemory 100mb
     maxmemory-policy allkeys-lru
 
-Read more about this topic in the offical `Redis LRU Cache Documentation`_.
+Read more about this topic in the official `Redis LRU Cache Documentation`_.
 
 .. _`Data Source Name (DSN)`: https://en.wikipedia.org/wiki/Data_source_name
 .. _`Redis server`: https://redis.io/

components/cache/cache_invalidation.rst

@@ -7,7 +7,7 @@ Cache Invalidation
 
 Cache invalidation is the process of removing all cached items related to a
 change in the state of your model. The most basic kind of invalidation is direct
-items deletion. But when the state of a primary resource has spread across
+item deletion. But when the state of a primary resource has spread across
 several cached items, keeping them in sync can be difficult.
 
 The Symfony Cache component provides two mechanisms to help solve this problem:
@@ -47,7 +47,7 @@ you can invalidate the cached items by calling
     // if you know the cache key, you can also delete the item directly
     $cache->delete('cache_key');
 
-Using tags invalidation is very useful when tracking cache keys becomes difficult.
+Using tag invalidation is very useful when tracking cache keys becomes difficult.
 
 Tag Aware Adapters
 ~~~~~~~~~~~~~~~~~~

components/http_foundation/sessions.rst

@@ -53,7 +53,7 @@ Quick example::
 .. caution::
 
     Symfony sessions are incompatible with ``php.ini`` directive ``session.auto_start = 1``
-    This directive should be turned off in ``php.ini``, in the webserver directives or
+    This directive should be turned off in ``php.ini``, in the web server directives or
     in ``.htaccess``.
 
 Session API
@@ -152,7 +152,7 @@ the following API which is intended mainly for internal purposes:
     Returns the name of the session bag.
 
 :method:`Symfony\\Component\\HttpFoundation\\Session\\SessionBagInterface::clear`
-    Clears out data from bag.
+    Clears out data from the bag.
 
 .. _attribute-bag-interface:
 
@@ -301,7 +301,7 @@ has the API
     Gets flashes by type (read only).
 
 :method:`Symfony\\Component\\HttpFoundation\\Session\\Flash\\FlashBagInterface::peekAll`
-    Gets all flashes (read only) as keyed array of arrays.
+    Gets all flashes (read only) as a keyed array of arrays.
 
 :method:`Symfony\\Component\\HttpFoundation\\Session\\Flash\\FlashBagInterface::has`
     Returns true if the type exists, false if not.

components/security/authentication.rst

@@ -299,7 +299,7 @@ Authentication Success and Failure Events
 When a provider authenticates the user, a ``security.authentication.success``
 event is dispatched. But beware - this event may fire, for example, on *every*
 request if you have session-based authentication, if ``always_authenticate_before_granting``
-is enabled or if token is not authenticated before AccessListener is invoked.
+is enabled or if the token is not authenticated before AccessListener is invoked.
 See ``security.interactive_login`` below if you need to do something when a user *actually* logs in.
 
 When a provider attempts authentication but fails (i.e. throws an ``AuthenticationException``),
@@ -324,7 +324,7 @@ The ``security.switch_user`` event is triggered every time you activate
 the ``switch_user`` firewall listener.
 
 The ``Symfony\Component\Security\Http\Event\DeauthenticatedEvent`` event is triggered when a token has been deauthenticated
-because of a user change, it can help you doing some clean-up task.
+because of a user change. It can help you perform clean-up tasks.
 
 .. seealso::
 

components/yaml/yaml_format.rst

@@ -25,7 +25,7 @@ they can also be unquoted:
 
     A string in YAML
 
-    'A singled-quoted string in YAML'
+    'A single-quoted string in YAML'
 
     "A double-quoted string in YAML"
 

configuration/env_var_processors.rst

@@ -583,8 +583,8 @@ Symfony provides the following env var processors:
             $container->setParameter('private_key', '%env(default:raw_key:file:PRIVATE_KEY)%');
             $container->setParameter('raw_key', '%env(PRIVATE_KEY)%');
 
-    When the fallback parameter is omitted (e.g. ``env(default::API_KEY)``), the
-    value returned is ``null``.
+    When the fallback parameter is omitted (e.g. ``env(default::API_KEY)``), then the
+    returned value is ``null``.
 
 ``env(url:FOO)``
     Parses an absolute URL and returns its components as an associative array.

configuration/front_controllers_and_kernel.rst

@@ -135,7 +135,7 @@ should run in "debug mode". Regardless of the
 :ref:`configuration environment <configuration-environments>`, a Symfony
 application can be run with debug mode set to ``true`` or ``false``.
 
-This affects many things in the application, such as displaying stacktraces on
+This affects many things in the application, such as displaying stack traces on
 error pages or if cache files are dynamically rebuilt on each request. Though
 not a requirement, debug mode is generally set to ``true`` for the ``dev`` and
 ``test`` environments and ``false`` for the ``prod`` environment.

configuration/multiple_kernels.rst

@@ -77,7 +77,7 @@ Now you need to define the ``ApiKernel`` class used by the new front controller.
 The easiest way to do this is by duplicating the existing  ``src/Kernel.php``
 file and make the needed changes.
 
-In this example, the ``ApiKernel`` will load less bundles than the default
+In this example, the ``ApiKernel`` will load fewer bundles than the default
 Kernel. Be sure to also change the location of the cache, logs and configuration
 files so they don't collide with the files from ``src/Kernel.php``::
 

controller/soap_web_service.rst

@@ -95,7 +95,7 @@ buffering the STDOUT and use ``ob_get_clean()`` to dump the echoed output
 into the content of the Response and clear the output buffer. Finally, you're
 ready to return the ``Response``.
 
-Below is an example calling the service using a native `SoapClient`_ client. This example
+Below is an example of calling the service using a native `SoapClient`_ client. This example
 assumes that the ``index()`` method in the controller above is accessible via
 the route ``/soap``::
 

http_cache.rst

@@ -71,7 +71,7 @@ Symfony Reverse Proxy
 
 Symfony comes with a reverse proxy (i.e. gateway cache) written in PHP.
 :ref:`It's not a fully-featured reverse proxy cache like Varnish <http-cache-symfony-versus-varnish>`,
-but is a great way to start.
+but it is a great way to start.
 
 .. tip::
 

http_client.rst

@@ -1020,7 +1020,7 @@ response sequentially instead of waiting for the entire response::
     ``php://temp`` stream. You can control this behavior by using the ``buffer``
     option: set it to ``true``/``false`` to enable/disable buffering, or to a
     closure that should return the same based on the response headers it receives
-    as argument.
+    as an argument.
 
 Canceling Responses
 ~~~~~~~~~~~~~~~~~~~
@@ -1190,7 +1190,7 @@ method will yield a special chunk whose ``isTimeout()`` will return ``true``::
 
     foreach ($client->stream($responses, 1.5) as $response => $chunk) {
         if ($chunk->isTimeout()) {
-            // $response staled for more than 1.5 seconds
+            // $response stale for more than 1.5 seconds
         }
     }
 

lock.rst

@@ -8,7 +8,7 @@ When a program runs concurrently, some part of code which modify shared
 resources should not be accessed by multiple processes at the same time.
 Symfony's :doc:`Lock component </components/lock>` provides a locking mechanism to ensure
 that only one process is running the critical section of code at any point of
-time to prevent race condition from happening.
+time to prevent race conditions from happening.
 
 The following example shows a typical usage of the lock::
 
@@ -199,7 +199,7 @@ Locking a Dynamic Resource
 --------------------------
 
 Sometimes the application is able to cut the resource into small pieces in order
-to lock a small subset of process and let other through. The previous example
+to lock a small subset of processes and let others through. The previous example
 showed how to lock the ``$pdf->getOrCreatePdf('terms-of-use')`` for everybody,
 now let's see how to lock ``$pdf->getOrCreatePdf($version)`` only for
 processes asking for the same ``$version``::

logging.rst

@@ -165,7 +165,7 @@ defined.
     If you want to override the ``monolog`` configuration via another config
     file, you will need to redefine the entire ``handlers`` stack. The configuration
     from the two files cannot be merged because the order matters and a merge does
-    not allow to control the order.
+    not allow you to control the order.
 
 Handlers that Modify Log Entries
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

testing.rst

@@ -29,7 +29,7 @@ After the library is installed, try running PHPUnit:
 
     $ php ./vendor/bin/phpunit
 
-This commands automatically runs your application's tests. Each test is a
+This command automatically runs your application tests. Each test is a
 PHP class ending with "Test" (e.g. ``BlogControllerTest``) that lives in
 the ``tests/`` directory of your application.
 
@@ -147,7 +147,7 @@ usually defined in the ``KERNEL_CLASS`` environment variable
 
     If your use case is more complex, you can also override the
     ``getKernelClass()`` or ``createKernel()`` methods of your functional
-    test, which take precedence over the ``KERNEL_CLASS`` env var.
+    test, which takes precedence over the ``KERNEL_CLASS`` env var.
 
 Set-up your Test Environment
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -378,7 +378,7 @@ generate an empty fixture class:
     The class name of the fixtures to create (e.g. AppFixtures):
     > ProductFixture
 
-Then you modify use this class to load new entities in the database. For
+Then you modify and use this class to load new entities in the database. For
 instance, to load ``Product`` objects into Doctrine, use::
 
     // src/DataFixtures/ProductFixture.php
@@ -911,7 +911,7 @@ Request Assertions
     Asserts the given :ref:`request attribute <component-foundation-attributes>`
     is set to the expected value.
 ``assertRouteSame($expectedRoute, array $parameters = [], string $message = '')``
-    Asserts the request matched the given route and optionally route parameters.
+    Asserts the request matches the given route and optionally route parameters.
 
 Browser Assertions
 ..................
@@ -974,7 +974,7 @@ Mailer Assertions
 ``assertEmailAttachmentCount(RawMessage $email, int $count, string $message = '')``
     Asserts that the given email has the expected number of attachments. Use
     ``getMailerMessage(int $index = 0, string $transport = null)`` to
-    retrievea specific email by index.
+    retrieve a specific email by index.
 ``assertEmailTextBodyContains(RawMessage $email, string $text, string $message = '')``/``assertEmailTextBodyNotContains(RawMessage $email, string $text, string $message = '')``
     Asserts that the text body of the given email does (not) contain the
     expected text.