diff --git a/core/modules/config_translation/src/Plugin/migrate/process/I18nBlockSettings.php b/core/modules/config_translation/src/Plugin/migrate/process/I18nBlockSettings.php
index 71f79d5..fbdd6d9 100644
--- a/core/modules/config_translation/src/Plugin/migrate/process/I18nBlockSettings.php
+++ b/core/modules/config_translation/src/Plugin/migrate/process/I18nBlockSettings.php
@@ -21,7 +21,7 @@ class I18nBlockSettings extends ProcessPluginBase {
    */
   public function transform($value, MigrateExecutableInterface $migrate_executable, Row $row, $destination_property) {
     list($plugin, $delta, $old_settings, $title) = $value;
-    $settings = array();
+    $settings = [];
     $settings['label'] = $title;
     if ($title) {
       $settings['label_display'] = BlockInterface::BLOCK_LABEL_VISIBLE;
diff --git a/core/modules/config_translation/src/Plugin/migrate/process/Substr.php b/core/modules/config_translation/src/Plugin/migrate/process/Substr.php
index 55a8e42..3821510 100644
--- a/core/modules/config_translation/src/Plugin/migrate/process/Substr.php
+++ b/core/modules/config_translation/src/Plugin/migrate/process/Substr.php
@@ -15,7 +15,6 @@
  *   id = "substr"
  * )
  */
-
 class Substr extends ProcessPluginBase {
 
   public function transform($value, MigrateExecutableInterface $migrate_executable, Row $row, $destination_property) {
diff --git a/core/modules/config_translation/src/Plugin/migrate/source/d6/I18nBlock.php b/core/modules/config_translation/src/Plugin/migrate/source/d6/I18nBlock.php
index 5972b7e..443f1a7 100644
--- a/core/modules/config_translation/src/Plugin/migrate/source/d6/I18nBlock.php
+++ b/core/modules/config_translation/src/Plugin/migrate/source/d6/I18nBlock.php
@@ -4,6 +4,7 @@
 
 use Drupal\migrate\Row;
 use Drupal\migrate_drupal\Plugin\migrate\source\DrupalSqlBase;
+
 /**
  * Gets i18n string block data from source database.
  *
@@ -46,9 +47,9 @@ public function query() {
       $this->blockTable = 'blocks';
     }
     $query = $this->select('i18n_strings', 'i18n')
-      ->fields('i18n', array('lid', 'type', 'property', 'objectid'))
-      ->fields('lt', array('lid', 'language', 'translation'))
-      ->fields('b', array('bid', 'module', 'delta', 'theme'))
+      ->fields('i18n', ['lid', 'type', 'property', 'objectid'])
+      ->fields('lt', ['lid', 'language', 'translation'])
+      ->fields('b', ['bid', 'module', 'delta', 'theme'])
       ->condition('i18n.type', 'block');
     $query->leftJoin($this->blockTable, 'b', 'b.bid = i18n.objectid');
     $query->leftJoin('locales_target', 'lt', 'lt.lid = i18n.lid');
@@ -68,14 +69,15 @@ protected function initializeIterator() {
    * {@inheritdoc}
    */
   public function fields() {
-    return array(
+    return [
       'bid' => $this->t('The block numeric identifier.'),
       'module' => $this->t('The module providing the block.'),
       'delta' => $this->t('The block\'s delta.'),
       'theme' => $this->t('Which theme the block is placed in.'),
       'language' => $this->t('Language for this field.'),
       'property' => $this->t('Name of property being translated.'),
-      'translation' => $this->t('Translation of either the title or explanation.'));
+      'translation' => $this->t('Translation of either the title or explanation.'
+    )];
   }
 
   /**
@@ -88,6 +90,7 @@ public function getIds() {
     $ids['language']['type'] = 'string';
     return $ids;
   }
+  
   /**
    * {@inheritdoc}
    */
diff --git a/core/modules/content_translation/src/Plugin/migrate/source/d6/I18nBox.php b/core/modules/content_translation/src/Plugin/migrate/source/d6/I18nBox.php
index 0da39cc..1d5edf4 100644
--- a/core/modules/content_translation/src/Plugin/migrate/source/d6/I18nBox.php
+++ b/core/modules/content_translation/src/Plugin/migrate/source/d6/I18nBox.php
@@ -62,9 +62,9 @@ protected function values() {
    */
   public function query() {
     $query = $this->select('i18n_strings', 'i18n')
-      ->fields('i18n', array('lid', 'type', 'property', 'objectid'))
-      ->fields('lt', array('lid', 'language', 'translation'))
-      ->fields('b', array('bid', 'body', 'info', 'format'))
+      ->fields('i18n', ['lid', 'type', 'property', 'objectid'])
+      ->fields('lt', ['lid', 'language', 'translation'])
+      ->fields('b', ['bid', 'body', 'info', 'format'])
       ->orderBy('bid')
       ->orderBy('language')
       ->orderBy('property')
@@ -81,13 +81,13 @@ public function query() {
    * {@inheritdoc}
    */
   public function fields() {
-    return array(
+    return [
       'bid' => $this->t('The block numeric identifier.'),
       'language' => $this->t('Language for this field.'),
       'body' => $this->t('The block/box content'),
       'info' => $this->t('Admin title of the block/box.'),
       'format' => $this->t('Input format of the custom block/box content.')
-    );
+    ];
   }
 
   /**
diff --git a/core/modules/migrate/src/Plugin/migrate/destination/EntityConfigBase.php b/core/modules/migrate/src/Plugin/migrate/destination/EntityConfigBase.php
index 596ed8b..af9cb7f 100644
--- a/core/modules/migrate/src/Plugin/migrate/destination/EntityConfigBase.php
+++ b/core/modules/migrate/src/Plugin/migrate/destination/EntityConfigBase.php
@@ -31,8 +31,7 @@ class EntityConfigBase extends Entity {
    * @var \Drupal\Core\Language\LanguageManagerInterface
    */
   protected $languageManager;
-
-  /**
+  
   /**
    * Construct a new entity.
    *
@@ -75,7 +74,7 @@ public static function create(ContainerInterface $container, array $configuratio
   /**
    * {@inheritdoc}
    */
-  public function import(Row $row, array $old_destination_id_values = array()) {
+  public function import(Row $row, array $old_destination_id_values = []) {
     if ($row->isStub()) {
       throw new MigrateException('Config entities can not be stubbed.');
     }
@@ -95,13 +94,13 @@ public function import(Row $row, array $old_destination_id_values = array()) {
     if (count($ids) > 1) {
       // This can only be a config entity, content entities have their ID key
       // and that's it.
-      $return = array();
+      $return = [];
       foreach ($id_keys as $id_key) {
         $return[] = $entity->get($id_key);
       }
       return $return;
     }
-    return array($entity->id());
+    return [$entity->id()];
   }
 
   /**
@@ -171,7 +170,7 @@ protected function updateEntityProperty(EntityInterface $entity, array $parents,
    *   The generated entity ID.
    */
   protected function generateId(Row $row, array $ids) {
-    $id_values = array();
+    $id_values = [];
     foreach ($ids as $id) {
       $id_values[] = $row->getDestinationProperty($id);
     }
diff --git a/core/modules/migrate/src/Plugin/migrate/destination/EntityContentBase.php b/core/modules/migrate/src/Plugin/migrate/destination/EntityContentBase.php
index 19d47e5..52b094c 100644
--- a/core/modules/migrate/src/Plugin/migrate/destination/EntityContentBase.php
+++ b/core/modules/migrate/src/Plugin/migrate/destination/EntityContentBase.php
@@ -93,7 +93,7 @@ public static function create(ContainerInterface $container, array $configuratio
   /**
    * {@inheritdoc}
    */
-  public function import(Row $row, array $old_destination_id_values = array()) {
+  public function import(Row $row, array $old_destination_id_values = []) {
     $this->rollbackAction = MigrateIdMapInterface::ROLLBACK_DELETE;
     $entity = $this->getEntity($row, $old_destination_id_values);
     if (!$entity) {
@@ -118,9 +118,9 @@ public function import(Row $row, array $old_destination_id_values = array()) {
    * @return array
    *   An array containing the entity ID.
    */
-  protected function save(ContentEntityInterface $entity, array $old_destination_id_values = array()) {
+  protected function save(ContentEntityInterface $entity, array $old_destination_id_values = []) {
     $entity->save();
-    return array($entity->id());
+    return [$entity->id()];
   }
 
   /**