Issue #3266572: Fix coding standards

src/Plugin/migrate/process/TransformDndAtomsToMedias.php

@@ -65,13 +65,13 @@ class TransformDndAtomsToMedias extends MigrationLookup {
       return $value;
     }
 
-    $DOM = new \DOMDocument('1.0', 'utf-8');
-    @$DOM->loadHTML('<?xml version="1.0" encoding="utf-8"?>' . $value);
+    $dom = new \DOMDocument('1.0', 'utf-8');
+    @$dom->loadHTML('<?xml version="1.0" encoding="utf-8"?>' . $value);
 
-    $items = $DOM->getElementsByTagName('div');
+    $items = $dom->getElementsByTagName('div');
 
     // Get each atom wrappers data (sid, type, align, context):
-    foreach ($items AS $item) {
+    foreach ($items as $item) {
       $sid = $item->getAttribute('data-scald-sid');
       if ($sid) {
         $type = $item->getAttribute('data-scald-type');
@@ -81,7 +81,7 @@ class TransformDndAtomsToMedias extends MigrationLookup {
         if (is_null($uuid)) {
           continue;
         }
-        $drupalMedia = $DOM->createElement('drupal-media', '');
+        $drupalMedia = $dom->createElement('drupal-media', '');
         $drupalMedia->setAttribute('data-entity-type', 'media');
         $drupalMedia->setAttribute('data-entity-uuid', $uuid);
         $drupalMedia->setAttribute('data-align', $align);
@@ -100,7 +100,7 @@ class TransformDndAtomsToMedias extends MigrationLookup {
     foreach ($replacements as $data) {
       $data['source']->parentNode->replaceChild($data['target'], $data['source']);
     }
-    $value = preg_replace('/(<\/?body>|<\/?html>)/', '', $DOM->saveXML($DOM->documentElement));
+    $value = preg_replace('/(<\/?body>|<\/?html>)/', '', $dom->saveXML($dom->documentElement));
     return $value;
   }
 
@@ -111,7 +111,8 @@ class TransformDndAtomsToMedias extends MigrationLookup {
    *   Atom ID.
    * @param string $mediaType
    *   Media bundle.
-   * @return string|NULL
+   *
+   * @return string|null
    *   Media entity uuid.
    */
   protected function sidToUuid($sid, $mediaType) {
@@ -148,4 +149,5 @@ class TransformDndAtomsToMedias extends MigrationLookup {
       throw new MigrateException(sprintf('A %s was thrown while processing this migration lookup', gettype($e)), $e->getCode(), $e);
     }
   }
+
 }