diff --git a/core/lib/Drupal/Core/Config/Entity/Query/Condition.php b/core/lib/Drupal/Core/Config/Entity/Query/Condition.php
index 23971eafc28f025c45516ef5a48b0c260c62c82d..bd2facd18fe8070c3b6c918ccd52d27a19ecb81f 100644
--- a/core/lib/Drupal/Core/Config/Entity/Query/Condition.php
+++ b/core/lib/Drupal/Core/Config/Entity/Query/Condition.php
@@ -50,7 +50,7 @@ public function compile($configs) {
           // matter and this config object does not match.
           // If OR and it is matching, then the rest of conditions do not
           // matter and this config object does match.
-          if ($and != $match ) {
+          if ($and != $match) {
             break;
           }
         }
diff --git a/core/lib/Drupal/Core/Config/InstallStorage.php b/core/lib/Drupal/Core/Config/InstallStorage.php
index 9fea3df47307389dcf4932455c79da6024ec2e28..c8d189e480e05eef455c3de5c77b427fad0d90c1 100644
--- a/core/lib/Drupal/Core/Config/InstallStorage.php
+++ b/core/lib/Drupal/Core/Config/InstallStorage.php
@@ -133,7 +133,7 @@ public function listAll($prefix = '') {
     else {
       $return = [];
       foreach ($names as $index => $name) {
-        if (strpos($name, $prefix) === 0 ) {
+        if (strpos($name, $prefix) === 0) {
           $return[$index] = $names[$index];
         }
       }
diff --git a/core/lib/Drupal/Core/Database/Driver/pgsql/Install/Tasks.php b/core/lib/Drupal/Core/Database/Driver/pgsql/Install/Tasks.php
index c9eb3f85a3284a919a2dedf3d29d91e95635fc6d..70d9a333ce04b1f0073974527bc128e2bcabeca5 100644
--- a/core/lib/Drupal/Core/Database/Driver/pgsql/Install/Tasks.php
+++ b/core/lib/Drupal/Core/Database/Driver/pgsql/Install/Tasks.php
@@ -254,7 +254,7 @@ public function initializeDatabase() {
           \'SELECT random();\'
           LANGUAGE \'sql\'',
           [],
-          ['allow_delimiter_in_query' => TRUE ]
+          ['allow_delimiter_in_query' => TRUE]
         );
       }
 
@@ -263,7 +263,7 @@ public function initializeDatabase() {
           \'SELECT array_to_string((string_to_array($1, $2)) [1:$3], $2);\'
           LANGUAGE \'sql\'',
           [],
-          ['allow_delimiter_in_query' => TRUE ]
+          ['allow_delimiter_in_query' => TRUE]
         );
       }
       $connection->query('SELECT pg_advisory_unlock(1)');
diff --git a/core/lib/Drupal/Core/Diff/DiffFormatter.php b/core/lib/Drupal/Core/Diff/DiffFormatter.php
index 0c17ce2e02c7efaae3263fe3f0359b6bc74aadd9..d6c9cb6033ac454bb70703167fefb7a88ef42e7a 100644
--- a/core/lib/Drupal/Core/Diff/DiffFormatter.php
+++ b/core/lib/Drupal/Core/Diff/DiffFormatter.php
@@ -192,7 +192,7 @@ protected function _changed($orig, $closing) {
     // Notice that WordLevelDiff returns HTML-escaped output. Hence, we will be
     // calling addedLine/deletedLine without HTML-escaping.
     while ($line = array_shift($del)) {
-      $aline = array_shift($add );
+      $aline = array_shift($add);
       $this->rows[] = array_merge($this->deletedLine($line), isset($aline) ? $this->addedLine($aline) : $this->emptyLine());
     }
 
diff --git a/core/lib/Drupal/Core/Entity/EntityType.php b/core/lib/Drupal/Core/Entity/EntityType.php
index 5f6589a6b4afb27d11afa0165b59b66cdc6228af..9584ed3e26511dac2b420aa516f128d91d6fde20 100644
--- a/core/lib/Drupal/Core/Entity/EntityType.php
+++ b/core/lib/Drupal/Core/Entity/EntityType.php
@@ -313,7 +313,7 @@ public function __construct($definition) {
 
     // Automatically add the EntityChanged constraint if the entity type tracks
     // the changed time.
-    if ($this->entityClassImplements(EntityChangedInterface::class) ) {
+    if ($this->entityClassImplements(EntityChangedInterface::class)) {
       $this->addConstraint('EntityChanged');
     }
 
diff --git a/core/lib/Drupal/Core/Entity/Plugin/DataType/EntityAdapter.php b/core/lib/Drupal/Core/Entity/Plugin/DataType/EntityAdapter.php
index bd5a71037309746b9d93ccbbdc5a4cab1d7a5390..db194b5485262e06b78670c6e112cb8843ffc8e2 100644
--- a/core/lib/Drupal/Core/Entity/Plugin/DataType/EntityAdapter.php
+++ b/core/lib/Drupal/Core/Entity/Plugin/DataType/EntityAdapter.php
@@ -46,7 +46,7 @@ class EntityAdapter extends TypedData implements \IteratorAggregate, ComplexData
   public static function createFromEntity(EntityInterface $entity) {
     $definition = EntityDataDefinition::create()
       ->setEntityTypeId($entity->getEntityTypeId())
-      ->setBundles([$entity->bundle() ]);
+      ->setBundles([$entity->bundle()]);
     $instance = new static($definition);
     $instance->setValue($entity);
     return $instance;
diff --git a/core/lib/Drupal/Core/Update/UpdateRegistry.php b/core/lib/Drupal/Core/Update/UpdateRegistry.php
index b24ac67657f3b7d7d53253d965fb706b89fcec28..a4e0081cf16d82ee7b4514108d6bd3ec4af2734d 100644
--- a/core/lib/Drupal/Core/Update/UpdateRegistry.php
+++ b/core/lib/Drupal/Core/Update/UpdateRegistry.php
@@ -226,7 +226,7 @@ public function getModuleUpdateFunctions($module_name) {
     $all_functions = $this->getAvailableUpdateFunctions();
 
     return array_filter($all_functions, function ($function_name) use ($module_name) {
-      list($function_module_name, ) = explode("_{$this->updateType}_", $function_name);
+      list($function_module_name,) = explode("_{$this->updateType}_", $function_name);
       return $function_module_name === $module_name;
     });
   }
diff --git a/core/modules/action/tests/src/Functional/ActionUninstallTest.php b/core/modules/action/tests/src/Functional/ActionUninstallTest.php
index 6b52643bc543613117f7f22cc46a5593b775768e..5b01099fd216a37e4d9ba07d30c8afe57fe81b3c 100644
--- a/core/modules/action/tests/src/Functional/ActionUninstallTest.php
+++ b/core/modules/action/tests/src/Functional/ActionUninstallTest.php
@@ -27,7 +27,7 @@ public function testActionUninstall() {
 
     $storage = $this->container->get('entity_type.manager')->getStorage('action');
     $storage->resetCache(['user_block_user_action']);
-    $this->assertTrue($storage->load('user_block_user_action'), 'Configuration entity \'user_block_user_action\' still exists after uninstalling action module.' );
+    $this->assertTrue($storage->load('user_block_user_action'), 'Configuration entity \'user_block_user_action\' still exists after uninstalling action module.');
 
     $admin_user = $this->drupalCreateUser(['administer users']);
     $this->drupalLogin($admin_user);
diff --git a/core/modules/block/src/BlockAccessControlHandler.php b/core/modules/block/src/BlockAccessControlHandler.php
index 176c32674f0d2fcf000a7415b547c2b201a4a061..35af61ed5429ffcf3c3e5304fdefcc9e6c3fec83 100644
--- a/core/modules/block/src/BlockAccessControlHandler.php
+++ b/core/modules/block/src/BlockAccessControlHandler.php
@@ -61,7 +61,7 @@ public static function createInstance(ContainerInterface $container, EntityTypeI
    * @param \Drupal\Core\Plugin\Context\ContextRepositoryInterface $context_repository
    *   The lazy context repository service.
    */
-  public function __construct(EntityTypeInterface $entity_type, ContextHandlerInterface $context_handler, ContextRepositoryInterface $context_repository ) {
+  public function __construct(EntityTypeInterface $entity_type, ContextHandlerInterface $context_handler, ContextRepositoryInterface $context_repository) {
     parent::__construct($entity_type);
     $this->contextHandler = $context_handler;
     $this->contextRepository = $context_repository;
diff --git a/core/modules/config_translation/src/FormElement/Textarea.php b/core/modules/config_translation/src/FormElement/Textarea.php
index ff9e4cde4035da60c9d340c35c73e1255c5e4254..4308969e2dcc18702f0b1b8f26985c1b2c039469 100644
--- a/core/modules/config_translation/src/FormElement/Textarea.php
+++ b/core/modules/config_translation/src/FormElement/Textarea.php
@@ -15,7 +15,7 @@ class Textarea extends FormElementBase {
   public function getTranslationElement(LanguageInterface $translation_language, $source_config, $translation_config) {
     // Estimate a comfortable size of the input textarea.
     $rows_words = ceil(str_word_count($translation_config) / 5);
-    $rows_newlines = substr_count($translation_config, "\n" ) + 1;
+    $rows_newlines = substr_count($translation_config, "\n") + 1;
     $rows = max($rows_words, $rows_newlines);
 
     return [
diff --git a/core/modules/field/tests/src/Kernel/FieldStorageCrudTest.php b/core/modules/field/tests/src/Kernel/FieldStorageCrudTest.php
index dfc50f21aa80737293021bc158fb301e4e70a3b3..a24bedb64066fc41df46242be454a4cbc27fe029 100644
--- a/core/modules/field/tests/src/Kernel/FieldStorageCrudTest.php
+++ b/core/modules/field/tests/src/Kernel/FieldStorageCrudTest.php
@@ -347,7 +347,7 @@ public function testDeleteNoData() {
     FieldConfig::create($field_definition)->save();
     $field_storage = FieldStorageConfig::load('entity_test.' . $field_storage_definition['field_name']);
     $this->assertTrue(!empty($field_storage) && !$field_storage->isDeleted(), 'A new storage with a previously used name is created.');
-    $field = FieldConfig::load('entity_test.' . $field_definition['bundle'] . '.' . $field_definition['field_name'] );
+    $field = FieldConfig::load('entity_test.' . $field_definition['bundle'] . '.' . $field_definition['field_name']);
     $this->assertTrue(!empty($field) && !$field->isDeleted(), 'A new field for a previously used field name is created.');
 
     // Save an entity with data for the field
diff --git a/core/modules/hal/tests/src/Kernel/DenormalizeTest.php b/core/modules/hal/tests/src/Kernel/DenormalizeTest.php
index bed2ff68292a83a21f66bed0c605661f5d119ab1..87eb97329f003a3044e875ac4c528b7183330266 100644
--- a/core/modules/hal/tests/src/Kernel/DenormalizeTest.php
+++ b/core/modules/hal/tests/src/Kernel/DenormalizeTest.php
@@ -135,7 +135,7 @@ public function testMarkFieldForDeletion() {
       ],
       'field_test_text' => [],
     ];
-    $entity = $this->serializer->denormalize($data, get_class($entity), $this->format, ['target_instance' => $entity ]);
+    $entity = $this->serializer->denormalize($data, get_class($entity), $this->format, ['target_instance' => $entity]);
     $this->assertEqual($entity->field_test_text->count(), 0);
   }
 
diff --git a/core/modules/image/src/Tests/ImageStylesPathAndUrlTest.php b/core/modules/image/src/Tests/ImageStylesPathAndUrlTest.php
index 8296601babe378c241f0c6760f57c7eab7dde713..baa4e7fd533d569224698e23292bdcb60da0f654 100644
--- a/core/modules/image/src/Tests/ImageStylesPathAndUrlTest.php
+++ b/core/modules/image/src/Tests/ImageStylesPathAndUrlTest.php
@@ -193,7 +193,7 @@ public function doImageStyleUrlAndPathTests($scheme, $clean_url = TRUE, $extra_s
       $this->drupalGet($generate_url_noaccess);
       $this->assertResponse(403, 'Confirmed that access is denied for the private image style.');
       // Verify that images are not appended to the response. Currently this test only uses PNG images.
-      if (strpos($generate_url, '.png') === FALSE ) {
+      if (strpos($generate_url, '.png') === FALSE) {
         $this->fail('Confirming that private image styles are not appended require PNG file.');
       }
       else {
diff --git a/core/modules/image/src/Tests/QuickEditImageControllerTest.php b/core/modules/image/src/Tests/QuickEditImageControllerTest.php
index 870c1bb5d5d30fdc0f4b5c8017ea0dde7a3f0e45..cfe4ccbfb14394781742bcc657b37f02522dde51 100644
--- a/core/modules/image/src/Tests/QuickEditImageControllerTest.php
+++ b/core/modules/image/src/Tests/QuickEditImageControllerTest.php
@@ -139,7 +139,7 @@ public function testInvalidUpload() {
     foreach ($this->drupalGetTestFiles('image') as $image) {
       /** @var \Drupal\Core\Image\ImageInterface $image_file */
       $image_file = $image_factory->get($image->uri);
-      if ($image_file->getWidth() < 50 || $image_file->getWidth() > 100 ) {
+      if ($image_file->getWidth() < 50 || $image_file->getWidth() > 100) {
         $invalid_image = $image;
         break;
       }
diff --git a/core/modules/language/src/Form/NegotiationBrowserForm.php b/core/modules/language/src/Form/NegotiationBrowserForm.php
index 798d4b06b0cd3a4b7ec32ad9ec5735beff3beb33..1ffd1a2c5c3fc8cda6f34d61b5a1c4d36a71b3a9 100644
--- a/core/modules/language/src/Form/NegotiationBrowserForm.php
+++ b/core/modules/language/src/Form/NegotiationBrowserForm.php
@@ -26,7 +26,7 @@ class NegotiationBrowserForm extends ConfigFormBase {
   /**
    * {@inheritdoc}
    */
-  public function __construct(ConfigFactoryInterface $config_factory, ConfigurableLanguageManagerInterface $language_manager ) {
+  public function __construct(ConfigFactoryInterface $config_factory, ConfigurableLanguageManagerInterface $language_manager) {
     parent::__construct($config_factory);
     $this->languageManager = $language_manager;
   }
diff --git a/core/modules/migrate/tests/src/Unit/Plugin/migrate/destination/EntityContentBaseTest.php b/core/modules/migrate/tests/src/Unit/Plugin/migrate/destination/EntityContentBaseTest.php
index c38d04184bf50e0ef1ad8d564eaece0aceb1993f..4fa08fed0a200d2d69e285f41afa74eb75f94f36 100644
--- a/core/modules/migrate/tests/src/Unit/Plugin/migrate/destination/EntityContentBaseTest.php
+++ b/core/modules/migrate/tests/src/Unit/Plugin/migrate/destination/EntityContentBaseTest.php
@@ -113,7 +113,7 @@ public function testUntranslatable() {
     $this->storage->getEntityType()->willReturn($entity_type->reveal());
 
     $destination = new EntityTestDestination(
-      ['translations' => TRUE ],
+      ['translations' => TRUE],
       '',
       [],
       $this->migration->reveal(),
diff --git a/core/modules/node/src/NodeGrantDatabaseStorage.php b/core/modules/node/src/NodeGrantDatabaseStorage.php
index 993d0950d1a29a0e3899908c8030aaa452609a91..f6ae1f6c1343982a8aa06b240038002722d28997 100644
--- a/core/modules/node/src/NodeGrantDatabaseStorage.php
+++ b/core/modules/node/src/NodeGrantDatabaseStorage.php
@@ -138,7 +138,7 @@ public function checkAll(AccountInterface $account) {
 
     $grants = static::buildGrantsQueryCondition(node_access_grants('view', $account));
 
-    if (count($grants) > 0 ) {
+    if (count($grants) > 0) {
       $query->condition($grants);
     }
     return $query->execute()->fetchField();
diff --git a/core/modules/node/tests/src/Functional/NodeCreationTest.php b/core/modules/node/tests/src/Functional/NodeCreationTest.php
index 4d24901e58bdbdf5f6173c44d38c2ea435c39118..1ea8fcc3326caeb705b4a68f776af16f8a2dba95 100644
--- a/core/modules/node/tests/src/Functional/NodeCreationTest.php
+++ b/core/modules/node/tests/src/Functional/NodeCreationTest.php
@@ -184,7 +184,7 @@ public function testNodeAddWithoutContentTypes() {
     $this->assertNoLinkByHref('/admin/structure/types/add');
 
     // Test /node/add page without content types.
-    foreach (\Drupal::entityManager()->getStorage('node_type')->loadMultiple() as $entity ) {
+    foreach (\Drupal::entityManager()->getStorage('node_type')->loadMultiple() as $entity) {
       $entity->delete();
     }
 
diff --git a/core/modules/search/src/SearchQuery.php b/core/modules/search/src/SearchQuery.php
index dbd0534235cc542f68c9cf72aafadde6cb8be160..cc0b65e07b525d21a5d104e1a28acfb397941acf 100644
--- a/core/modules/search/src/SearchQuery.php
+++ b/core/modules/search/src/SearchQuery.php
@@ -574,7 +574,7 @@ public function execute() {
 
     // Add arguments for the keyword relevance normalization number.
     $normalization = 1.0 / $this->normalize;
-    for ($i = 0; $i < $this->relevance_count; $i++ ) {
+    for ($i = 0; $i < $this->relevance_count; $i++) {
       $this->scoresArguments[':normalization_' . $i] = $normalization;
     }
 
diff --git a/core/modules/simpletest/src/Tests/SimpleTestTest.php b/core/modules/simpletest/src/Tests/SimpleTestTest.php
index 5896b384a4c298dcfe86c04f5cc04f2cbc389d9b..42759c255ae2d7daaf04b00ce6d4ebf098ac8f77 100644
--- a/core/modules/simpletest/src/Tests/SimpleTestTest.php
+++ b/core/modules/simpletest/src/Tests/SimpleTestTest.php
@@ -175,7 +175,7 @@ public function stubTest() {
         // along by the rethrow.
         assert(FALSE, 'Lorem Ipsum');
       }
-      catch (\AssertionError $e ) {
+      catch (\AssertionError $e) {
         $this->assertEqual($e->getMessage(), 'Lorem Ipsum', 'Runtime assertions Enabled and running.');
       }
     }
diff --git a/core/modules/system/src/Plugin/ImageToolkit/Operation/gd/Rotate.php b/core/modules/system/src/Plugin/ImageToolkit/Operation/gd/Rotate.php
index f27f82e6455f5f1297298b0dbd46d0666e26dd92..e567ea43f261215758e0f9d75cb8eb4afe488bd8 100644
--- a/core/modules/system/src/Plugin/ImageToolkit/Operation/gd/Rotate.php
+++ b/core/modules/system/src/Plugin/ImageToolkit/Operation/gd/Rotate.php
@@ -45,7 +45,7 @@ protected function validateArguments(array $arguments) {
     // Validate or set background color argument.
     if (!empty($arguments['background'])) {
       // Validate the background color: Color::hexToRgb does so for us.
-      $background = Color::hexToRgb($arguments['background']) + ['alpha' => 0 ];
+      $background = Color::hexToRgb($arguments['background']) + ['alpha' => 0];
     }
     else {
       // Background color is not specified: use transparent white as background.
diff --git a/core/modules/system/src/Tests/Module/InstallUninstallTest.php b/core/modules/system/src/Tests/Module/InstallUninstallTest.php
index f4db81e18e02246d53bf50dd05ec2d415a79b9d7..a78918bc941a5a044b9f3e8bc5b8596f240ba4c0 100644
--- a/core/modules/system/src/Tests/Module/InstallUninstallTest.php
+++ b/core/modules/system/src/Tests/Module/InstallUninstallTest.php
@@ -275,7 +275,7 @@ protected function assertInstallModuleUpdates($module) {
     $all_update_functions = $post_update_registry->getPendingUpdateFunctions();
     $empty_result = TRUE;
     foreach ($all_update_functions as $function) {
-      list($function_module, ) = explode('_post_update_', $function);
+      list($function_module,) = explode('_post_update_', $function);
       if ($module === $function_module) {
         $empty_result = FALSE;
         break;
diff --git a/core/modules/system/system.install b/core/modules/system/system.install
index db361f3971066a0b669e6923a585232b72f4dd21..bb69bd33f5356ce2535310f9e445ffd15eab33f0 100644
--- a/core/modules/system/system.install
+++ b/core/modules/system/system.install
@@ -621,7 +621,7 @@ function system_requirements($phase) {
       }
     }
   }
-  if ($phase != 'install' && (empty($GLOBALS['config_directories']) || empty($GLOBALS['config_directories'][CONFIG_SYNC_DIRECTORY]) )) {
+  if ($phase != 'install' && (empty($GLOBALS['config_directories']) || empty($GLOBALS['config_directories'][CONFIG_SYNC_DIRECTORY]))) {
     $requirements['config directories'] = [
       'title' => t('Configuration directories'),
       'value' => t('Not present'),
@@ -1538,7 +1538,7 @@ function system_update_8007() {
   $schema = \Drupal::keyValue('entity.storage_schema.sql')->getAll();
   $schema_copy = $schema;
   foreach ($schema as $item_name => $item) {
-    list($entity_type_id, , ) = explode('.', $item_name);
+    list($entity_type_id, ,) = explode('.', $item_name);
     if (!isset($entity_types[$entity_type_id])) {
       continue;
     }
diff --git a/core/modules/system/system.module b/core/modules/system/system.module
index 7860237c3bb69b1899269d438f5891b3062febbb..13568e61c2543b1d6854c6f7fb862fb3bd81d1d5 100644
--- a/core/modules/system/system.module
+++ b/core/modules/system/system.module
@@ -611,7 +611,7 @@ function system_page_attachments(array &$page) {
   }
 
   // Get the major Drupal version.
-  list($version, ) = explode('.', \Drupal::VERSION);
+  list($version,) = explode('.', \Drupal::VERSION);
 
   // Attach default meta tags.
   $meta_default = [
diff --git a/core/modules/system/tests/src/Functional/System/AdminMetaTagTest.php b/core/modules/system/tests/src/Functional/System/AdminMetaTagTest.php
index c58d1ec9106d1aff3c9ef04b9189d22a18528e97..dbd82cda02f08cc222d2b626e3f653fc1f648f31 100644
--- a/core/modules/system/tests/src/Functional/System/AdminMetaTagTest.php
+++ b/core/modules/system/tests/src/Functional/System/AdminMetaTagTest.php
@@ -14,7 +14,7 @@ class AdminMetaTagTest extends BrowserTestBase {
    * Verify that the meta tag HTML is generated correctly.
    */
   public function testMetaTag() {
-    list($version, ) = explode('.', \Drupal::VERSION);
+    list($version,) = explode('.', \Drupal::VERSION);
     $string = '<meta name="Generator" content="Drupal ' . $version . ' (https://www.drupal.org)" />';
     $this->drupalGet('node');
     $this->assertRaw($string, 'Fingerprinting meta tag generated correctly.', 'System');
diff --git a/core/modules/taxonomy/src/Tests/TaxonomyTermIndentationTest.php b/core/modules/taxonomy/src/Tests/TaxonomyTermIndentationTest.php
index fbf8515ea777a06a851f01474f1f43887e92062f..599b6fb2c7a790244aa18e90ba71017c0a23337e 100644
--- a/core/modules/taxonomy/src/Tests/TaxonomyTermIndentationTest.php
+++ b/core/modules/taxonomy/src/Tests/TaxonomyTermIndentationTest.php
@@ -65,7 +65,7 @@ public function testTermIndentation() {
       'terms[tid:' . $term2->id() . ':0][weight]' => 1,
     ];
 
-    $this->drupalPostForm('admin/structure/taxonomy/manage/' . $this->vocabulary->get('vid' ) . '/overview', $edit, t('Save'));
+    $this->drupalPostForm('admin/structure/taxonomy/manage/' . $this->vocabulary->get('vid') . '/overview', $edit, t('Save'));
     // All terms back at the root level, no indentation should be present.
     $this->assertNoPattern('|<div class="js-indentation indentation">&nbsp;</div>|');
 
diff --git a/core/modules/taxonomy/tests/src/Kernel/TermKernelTest.php b/core/modules/taxonomy/tests/src/Kernel/TermKernelTest.php
index 4c861ad6ae319d9c9de4c55547bfebddf4c57733..3d8bff80a3771405236418b1ba96ce931bbc647b 100644
--- a/core/modules/taxonomy/tests/src/Kernel/TermKernelTest.php
+++ b/core/modules/taxonomy/tests/src/Kernel/TermKernelTest.php
@@ -18,7 +18,7 @@ class TermKernelTest extends KernelTestBase {
   /**
    * {@inheritdoc}
    */
-  public static $modules = ['filter', 'taxonomy', 'text', 'user' ];
+  public static $modules = ['filter', 'taxonomy', 'text', 'user'];
 
   /**
    * {@inheritdoc}
diff --git a/core/modules/toolbar/toolbar.api.php b/core/modules/toolbar/toolbar.api.php
index 2ae71fb9370473b3aaeb379d169a310e867d4672..548b488992a4570c8d9b42a4226a72f3ea4cd0f6 100644
--- a/core/modules/toolbar/toolbar.api.php
+++ b/core/modules/toolbar/toolbar.api.php
@@ -109,7 +109,7 @@ function hook_toolbar() {
       '#heading' => t('Shopping cart actions'),
       'shopping_cart' => [
         '#theme' => 'item_list',
-        '#items' => [/* An item list renderable array */ ],
+        '#items' => [/* An item list renderable array */],
       ],
     ],
     '#weight' => 150,
diff --git a/core/modules/toolbar/toolbar.module b/core/modules/toolbar/toolbar.module
index 16983d63dc844dea4f959f4d521df385baf35af7..c7feaee2379779d3ef605cfbbc6ecbc4d2fc61a8 100644
--- a/core/modules/toolbar/toolbar.module
+++ b/core/modules/toolbar/toolbar.module
@@ -345,7 +345,7 @@ function _toolbar_do_get_rendered_subtrees(array $data) {
     // Many routes have dots as route name, while some special ones like <front>
     // have <> characters in them.
     $url = $link->getUrlObject();
-    $id = str_replace(['.', '<', '>'], ['-', '', '' ], $url->isRouted() ? $url->getRouteName() : $url->getUri());
+    $id = str_replace(['.', '<', '>'], ['-', '', ''], $url->isRouted() ? $url->getRouteName() : $url->getUri());
 
     $subtrees[$id] = $output;
   }
diff --git a/core/modules/user/src/Tests/UserRegistrationTest.php b/core/modules/user/src/Tests/UserRegistrationTest.php
index ca7a4f0c89e62e9c00dd01d44d24a7385716bb59..128b71b7da44c9c99640b89e293ad5f7b4a8963e 100644
--- a/core/modules/user/src/Tests/UserRegistrationTest.php
+++ b/core/modules/user/src/Tests/UserRegistrationTest.php
@@ -254,7 +254,7 @@ public function testRegistrationDefaultValues() {
     $new_user = reset($accounts);
     $this->assertEqual($new_user->getUsername(), $name, 'Username matches.');
     $this->assertEqual($new_user->getEmail(), $mail, 'Email address matches.');
-    $this->assertTrue(($new_user->getCreatedTime() > REQUEST_TIME - 20 ), 'Correct creation time.');
+    $this->assertTrue(($new_user->getCreatedTime() > REQUEST_TIME - 20), 'Correct creation time.');
     $this->assertEqual($new_user->isActive(), $config_user_settings->get('register') == USER_REGISTER_VISITORS ? 1 : 0, 'Correct status field.');
     $this->assertEqual($new_user->getTimezone(), $config_system_date->get('timezone.default'), 'Correct time zone field.');
     $this->assertEqual($new_user->langcode->value, \Drupal::languageManager()->getDefaultLanguage()->getId(), 'Correct language field.');
diff --git a/core/modules/views/src/Plugin/views/argument/MonthDate.php b/core/modules/views/src/Plugin/views/argument/MonthDate.php
index 17ce1b987b55ba50b35bfc2e7ae6d68628c5d9d3..a22824df8c2d5a09e5f68a9a16cca2278b3d5cf3 100644
--- a/core/modules/views/src/Plugin/views/argument/MonthDate.php
+++ b/core/modules/views/src/Plugin/views/argument/MonthDate.php
@@ -24,7 +24,7 @@ class MonthDate extends Date {
    */
   public function summaryName($data) {
     $month = str_pad($data->{$this->name_alias}, 2, '0', STR_PAD_LEFT);
-    return format_date(strtotime("2005" . $month . "15" . " 00:00:00 UTC" ), 'custom', $this->format, 'UTC');
+    return format_date(strtotime("2005" . $month . "15" . " 00:00:00 UTC"), 'custom', $this->format, 'UTC');
   }
 
   /**
diff --git a/core/modules/views/src/Plugin/views/field/FieldPluginBase.php b/core/modules/views/src/Plugin/views/field/FieldPluginBase.php
index 3c663f5f2e906770d813d455a17055938338cfe2..c5ce66bdc37077ff5a8514daef27d30359d09a67 100644
--- a/core/modules/views/src/Plugin/views/field/FieldPluginBase.php
+++ b/core/modules/views/src/Plugin/views/field/FieldPluginBase.php
@@ -865,10 +865,10 @@ public function buildOptionsForm(&$form, FormStateInterface $form_state) {
       $optgroup_arguments = (string) t('Arguments');
       $optgroup_fields = (string) t('Fields');
       foreach ($previous as $id => $label) {
-        $options[$optgroup_fields]["{{ $id }}"] = substr(strrchr($label, ":"), 2 );
+        $options[$optgroup_fields]["{{ $id }}"] = substr(strrchr($label, ":"), 2);
       }
       // Add the field to the list of options.
-      $options[$optgroup_fields]["{{ {$this->options['id']} }}"] = substr(strrchr($this->adminLabel(), ":"), 2 );
+      $options[$optgroup_fields]["{{ {$this->options['id']} }}"] = substr(strrchr($this->adminLabel(), ":"), 2);
 
       foreach ($this->view->display_handler->getHandlers('argument') as $arg => $handler) {
         $options[$optgroup_arguments]["{{ arguments.$arg }}"] = $this->t('@argument title', ['@argument' => $handler->adminLabel()]);
diff --git a/core/modules/views/src/Plugin/views/row/EntityReference.php b/core/modules/views/src/Plugin/views/row/EntityReference.php
index a985ee366d53f5242eb5062cfad7d8c5229947be..29661e3e08eab1dcafe7838aaa165517d46b7c57 100644
--- a/core/modules/views/src/Plugin/views/row/EntityReference.php
+++ b/core/modules/views/src/Plugin/views/row/EntityReference.php
@@ -37,7 +37,7 @@ public function buildOptionsForm(&$form, FormStateInterface $form_state) {
     parent::buildOptionsForm($form, $form_state);
 
     // Expand the description of the 'Inline field' checkboxes.
-    $form['inline']['#description'] .= '<br />' . $this->t("<strong>Note:</strong> In 'Entity Reference' displays, all fields will be displayed inline unless an explicit selection of inline fields is made here." );
+    $form['inline']['#description'] .= '<br />' . $this->t("<strong>Note:</strong> In 'Entity Reference' displays, all fields will be displayed inline unless an explicit selection of inline fields is made here.");
   }
 
   /**
diff --git a/core/modules/views/tests/src/Kernel/Plugin/RowEntityTest.php b/core/modules/views/tests/src/Kernel/Plugin/RowEntityTest.php
index b4ac0be838a5fae9972d926c70f801f42100193d..208a6f0ee3dfcac0c260ffd038e9eebfa9cf492a 100644
--- a/core/modules/views/tests/src/Kernel/Plugin/RowEntityTest.php
+++ b/core/modules/views/tests/src/Kernel/Plugin/RowEntityTest.php
@@ -47,7 +47,7 @@ protected function setUp($import_test_views = TRUE) {
   public function testEntityRow() {
     $vocab = Vocabulary::create(['name' => $this->randomMachineName(), 'vid' => strtolower($this->randomMachineName())]);
     $vocab->save();
-    $term = Term::create(['name' => $this->randomMachineName(), 'vid' => $vocab->id() ]);
+    $term = Term::create(['name' => $this->randomMachineName(), 'vid' => $vocab->id()]);
     $term->save();
 
     $view = Views::getView('test_entity_row');
diff --git a/core/modules/views_ui/src/ViewEditForm.php b/core/modules/views_ui/src/ViewEditForm.php
index cc8a77e957cb2750534ed2346a733d946efd61a2..84db541d3f06af2be787a4e97659049f6bb42745 100644
--- a/core/modules/views_ui/src/ViewEditForm.php
+++ b/core/modules/views_ui/src/ViewEditForm.php
@@ -265,7 +265,7 @@ public function save(array $form, FormStateInterface $form_state) {
         // options.
         $display_handler = $executable->displayHandlers->get($id);
         if ($attachments = $display_handler->getAttachedDisplays()) {
-          foreach ($attachments as $attachment ) {
+          foreach ($attachments as $attachment) {
             $attached_options = $executable->displayHandlers->get($attachment)->getOption('displays');
             unset($attached_options[$id]);
             $executable->displayHandlers->get($attachment)->setOption('displays', $attached_options);
diff --git a/core/phpcs.xml.dist b/core/phpcs.xml.dist
index 15b43fe1e2067aa66634270689b59fe3972d43be..22428aa24396beb50a5b286aec4ab469f4fc3def 100644
--- a/core/phpcs.xml.dist
+++ b/core/phpcs.xml.dist
@@ -118,6 +118,7 @@
   <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Semantics/PregSecuritySniff.php"/>
   <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Semantics/TInHookMenuSniff.php"/>
   <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Semantics/TInHookSchemaSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/WhiteSpace/CloseBracketSpacingSniff.php"/>
   <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/WhiteSpace/CommaSniff.php"/>
   <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/WhiteSpace/EmptyLinesSniff.php"/>
   <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/WhiteSpace/NamespaceSniff.php"/>
diff --git a/core/tests/Drupal/KernelTests/Core/Config/ConfigSchemaTest.php b/core/tests/Drupal/KernelTests/Core/Config/ConfigSchemaTest.php
index 5ded4842b5f80818aed58c4995a2fb3561279b6b..6c0bc1a6f41a8a1527027add6b5fbe97438f762d 100644
--- a/core/tests/Drupal/KernelTests/Core/Config/ConfigSchemaTest.php
+++ b/core/tests/Drupal/KernelTests/Core/Config/ConfigSchemaTest.php
@@ -336,7 +336,7 @@ public function testSchemaData() {
     $effect = $effects->get($uuid)->getElements();
     $this->assertTrue(!$effect['data']->isEmpty() && $effect['id']->getValue() == 'image_scale', 'Got data for the image scale effect from metadata.');
     $this->assertTrue($effect['data']->get('width') instanceof IntegerInterface, 'Got the right type for the scale effect width.');
-    $this->assertEqual($effect['data']->get('width')->getValue(), 480, 'Got the right value for the scale effect width.' );
+    $this->assertEqual($effect['data']->get('width')->getValue(), 480, 'Got the right value for the scale effect width.');
   }
 
   /**
diff --git a/core/tests/Drupal/KernelTests/Core/Database/ConnectionTest.php b/core/tests/Drupal/KernelTests/Core/Database/ConnectionTest.php
index e195f36f080a06dd1e31f45a034d1fe522b19403..47e11dadf9f42ffa7d97b88fcb104ab7f4a343e6 100644
--- a/core/tests/Drupal/KernelTests/Core/Database/ConnectionTest.php
+++ b/core/tests/Drupal/KernelTests/Core/Database/ConnectionTest.php
@@ -131,7 +131,7 @@ public function testMultipleStatementsForNewPhp() {
     try {
       $db->query('SELECT * FROM {test}; SELECT * FROM {test_people}',
         [],
-        ['allow_delimiter_in_query' => TRUE ]
+        ['allow_delimiter_in_query' => TRUE]
       );
       $this->fail('No PDO exception thrown for multiple statements.');
     }
diff --git a/core/tests/Drupal/Tests/Core/Cache/CacheableMetadataTest.php b/core/tests/Drupal/Tests/Core/Cache/CacheableMetadataTest.php
index db39f1079b559cc7eb7a87d7c59306e026269e03..f3824e8d5009b4d8ce40a3fb44e6ed277d244da0 100644
--- a/core/tests/Drupal/Tests/Core/Cache/CacheableMetadataTest.php
+++ b/core/tests/Drupal/Tests/Core/Cache/CacheableMetadataTest.php
@@ -87,12 +87,12 @@ public function providerTestMerge() {
   public function testAddCacheTags() {
     $metadata = new CacheableMetadata();
     $add_expected = [
-      [[], [] ],
-      [['foo:bar'], ['foo:bar'] ],
-      [['foo:baz'], ['foo:bar', 'foo:baz'] ],
-      [['axx:first', 'foo:baz'], ['axx:first', 'foo:bar', 'foo:baz'] ],
-      [[], ['axx:first', 'foo:bar', 'foo:baz'] ],
-      [['axx:first'], ['axx:first', 'foo:bar', 'foo:baz'] ],
+      [[], []],
+      [['foo:bar'], ['foo:bar']],
+      [['foo:baz'], ['foo:bar', 'foo:baz']],
+      [['axx:first', 'foo:baz'], ['axx:first', 'foo:bar', 'foo:baz']],
+      [[], ['axx:first', 'foo:bar', 'foo:baz']],
+      [['axx:first'], ['axx:first', 'foo:bar', 'foo:baz']],
     ];
 
     foreach ($add_expected as $data) {
diff --git a/core/tests/Drupal/Tests/Core/Entity/TypedData/EntityAdapterUnitTest.php b/core/tests/Drupal/Tests/Core/Entity/TypedData/EntityAdapterUnitTest.php
index d932993cfaadbf1a839f3fc647e67f8e1383c9f3..8d0f25291b03601f6a4f7afa4f90a1f2518bbf0d 100644
--- a/core/tests/Drupal/Tests/Core/Entity/TypedData/EntityAdapterUnitTest.php
+++ b/core/tests/Drupal/Tests/Core/Entity/TypedData/EntityAdapterUnitTest.php
@@ -320,7 +320,7 @@ public function testGetWithoutData() {
    * @covers ::set
    */
   public function testSet() {
-    $id_items = [['value' => $this->id + 1] ];
+    $id_items = [['value' => $this->id + 1]];
 
     $this->fieldItemList->expects($this->once())
       ->method('setValue')
@@ -334,7 +334,7 @@ public function testSet() {
    */
   public function testSetWithoutData() {
     $this->entityAdapter->setValue(NULL);
-    $id_items = [['value' => $this->id + 1] ];
+    $id_items = [['value' => $this->id + 1]];
     $this->setExpectedException(MissingDataException::class);
     $this->entityAdapter->set('id', $id_items);
   }
@@ -397,7 +397,7 @@ public function testGetDataDefinition() {
     $definition = $this->entityAdapter->getDataDefinition();
     $this->assertInstanceOf('\Drupal\Core\Entity\TypedData\EntityDataDefinitionInterface', $definition);
     $this->assertEquals($definition->getEntityTypeId(), $this->entityTypeId);
-    $this->assertEquals($definition->getBundles(), [$this->bundle ]);
+    $this->assertEquals($definition->getBundles(), [$this->bundle]);
   }
 
   /**