26 files changed, 43 insertions, 43 deletions

diff --git a/src/Wallabag/AnnotationBundle/Controller/WallabagAnnotationController.php b/src/Wallabag/AnnotationBundle/Controller/WallabagAnnotationController.php
index 8d7b6ee9..f3090e65 100644
--- a/src/Wallabag/AnnotationBundle/Controller/WallabagAnnotationController.php
+++ b/src/Wallabag/AnnotationBundle/Controller/WallabagAnnotationController.php
@@ -31,7 +31,7 @@ class WallabagAnnotationController extends FOSRestController
         $total = count($annotationRows);
         $annotations = ['total' => $total, 'rows' => $annotationRows];
 
-        $json = $this->get('serializer')->serialize($annotations, 'json');
+        $json = $this->get('jms_serializer')->serialize($annotations, 'json');
 
         return (new JsonResponse())->setJson($json);
     }
@@ -64,7 +64,7 @@ class WallabagAnnotationController extends FOSRestController
             $em->persist($annotation);
             $em->flush();
 
-            $json = $this->get('serializer')->serialize($annotation, 'json');
+            $json = $this->get('jms_serializer')->serialize($annotation, 'json');
 
             return JsonResponse::fromJsonString($json);
         }
@@ -99,7 +99,7 @@ class WallabagAnnotationController extends FOSRestController
             $em->persist($annotation);
             $em->flush();
 
-            $json = $this->get('serializer')->serialize($annotation, 'json');
+            $json = $this->get('jms_serializer')->serialize($annotation, 'json');
 
             return JsonResponse::fromJsonString($json);
         }
@@ -124,7 +124,7 @@ class WallabagAnnotationController extends FOSRestController
         $em->remove($annotation);
         $em->flush();
 
-        $json = $this->get('serializer')->serialize($annotation, 'json');
+        $json = $this->get('jms_serializer')->serialize($annotation, 'json');
 
         return (new JsonResponse())->setJson($json);
     }
diff --git a/src/Wallabag/ApiBundle/Controller/EntryRestController.php b/src/Wallabag/ApiBundle/Controller/EntryRestController.php
index 6db97731..86e72335 100644
--- a/src/Wallabag/ApiBundle/Controller/EntryRestController.php
+++ b/src/Wallabag/ApiBundle/Controller/EntryRestController.php
@@ -752,7 +752,7 @@ class EntryRestController extends WallabagRestController
         $context = new SerializationContext();
         $context->setSerializeNull(true);
 
-        $json = $this->get('serializer')->serialize($data, 'json', $context);
+        $json = $this->get('jms_serializer')->serialize($data, 'json', $context);
 
         return (new JsonResponse())->setJson($json);
     }
diff --git a/src/Wallabag/ApiBundle/Controller/TagRestController.php b/src/Wallabag/ApiBundle/Controller/TagRestController.php
index efa4e8cf..9d333fe4 100644
--- a/src/Wallabag/ApiBundle/Controller/TagRestController.php
+++ b/src/Wallabag/ApiBundle/Controller/TagRestController.php
@@ -25,7 +25,7 @@ class TagRestController extends WallabagRestController
             ->getRepository('WallabagCoreBundle:Tag')
             ->findAllTags($this->getUser()->getId());
 
-        $json = $this->get('serializer')->serialize($tags, 'json');
+        $json = $this->get('jms_serializer')->serialize($tags, 'json');
 
         return (new JsonResponse())->setJson($json);
     }
@@ -58,7 +58,7 @@ class TagRestController extends WallabagRestController
 
         $this->cleanOrphanTag($tag);
 
-        $json = $this->get('serializer')->serialize($tag, 'json');
+        $json = $this->get('jms_serializer')->serialize($tag, 'json');
 
         return (new JsonResponse())->setJson($json);
     }
@@ -100,7 +100,7 @@ class TagRestController extends WallabagRestController
 
         $this->cleanOrphanTag($tags);
 
-        $json = $this->get('serializer')->serialize($tags, 'json');
+        $json = $this->get('jms_serializer')->serialize($tags, 'json');
 
         return (new JsonResponse())->setJson($json);
     }
@@ -126,7 +126,7 @@ class TagRestController extends WallabagRestController
 
         $this->cleanOrphanTag($tag);
 
-        $json = $this->get('serializer')->serialize($tag, 'json');
+        $json = $this->get('jms_serializer')->serialize($tag, 'json');
 
         return (new JsonResponse())->setJson($json);
     }
@@ -145,7 +145,7 @@ class TagRestController extends WallabagRestController
         $em = $this->getDoctrine()->getManager();
 
         foreach ($tags as $tag) {
-            if (count($tag->getEntries()) === 0) {
+            if (0 === count($tag->getEntries())) {
                 $em->remove($tag);
             }
         }
diff --git a/src/Wallabag/ApiBundle/Controller/UserRestController.php b/src/Wallabag/ApiBundle/Controller/UserRestController.php
index 6f47cff0..a1378fc5 100644
--- a/src/Wallabag/ApiBundle/Controller/UserRestController.php
+++ b/src/Wallabag/ApiBundle/Controller/UserRestController.php
@@ -46,7 +46,7 @@ class UserRestController extends WallabagRestController
     public function putUserAction(Request $request)
     {
         if (!$this->getParameter('fosuser_registration') || !$this->get('craue_config')->get('api_user_registration')) {
-            $json = $this->get('serializer')->serialize(['error' => "Server doesn't allow registrations"], 'json');
+            $json = $this->get('jms_serializer')->serialize(['error' => "Server doesn't allow registrations"], 'json');
 
             return (new JsonResponse())
                 ->setJson($json)
@@ -92,7 +92,7 @@ class UserRestController extends WallabagRestController
                 $errors['password'] = $this->translateErrors($data['plainPassword']['children']['first']['errors']);
             }
 
-            $json = $this->get('serializer')->serialize(['error' => $errors], 'json');
+            $json = $this->get('jms_serializer')->serialize(['error' => $errors], 'json');
 
             return (new JsonResponse())
                 ->setJson($json)
@@ -127,7 +127,7 @@ class UserRestController extends WallabagRestController
      */
     private function sendUser(User $user, $group = 'user_api', $status = JsonResponse::HTTP_OK)
     {
-        $json = $this->get('serializer')->serialize(
+        $json = $this->get('jms_serializer')->serialize(
             $user,
             'json',
             SerializationContext::create()->setGroups([$group])
diff --git a/src/Wallabag/ApiBundle/Controller/WallabagRestController.php b/src/Wallabag/ApiBundle/Controller/WallabagRestController.php
index 71da2a64..7d8cfbba 100644
--- a/src/Wallabag/ApiBundle/Controller/WallabagRestController.php
+++ b/src/Wallabag/ApiBundle/Controller/WallabagRestController.php
@@ -19,7 +19,7 @@ class WallabagRestController extends FOSRestController
     public function getVersionAction()
     {
         $version = $this->container->getParameter('wallabag_core.version');
-        $json = $this->get('serializer')->serialize($version, 'json');
+        $json = $this->get('jms_serializer')->serialize($version, 'json');
 
         return (new JsonResponse())->setJson($json);
     }
diff --git a/src/Wallabag/CoreBundle/Command/ListUserCommand.php b/src/Wallabag/CoreBundle/Command/ListUserCommand.php
index 20660d18..68e515da 100644
--- a/src/Wallabag/CoreBundle/Command/ListUserCommand.php
+++ b/src/Wallabag/CoreBundle/Command/ListUserCommand.php
@@ -52,7 +52,7 @@ class ListUserCommand extends ContainerAwareCommand
                 '%s/%s%s user(s) displayed.',
                 count($users),
                 $nbUsers,
-                $input->getArgument('search') === null ? '' : ' (filtered)'
+                null === $input->getArgument('search') ? '' : ' (filtered)'
             )
         );
 
diff --git a/src/Wallabag/CoreBundle/Command/ShowUserCommand.php b/src/Wallabag/CoreBundle/Command/ShowUserCommand.php
index 2dca32c4..a0184267 100644
--- a/src/Wallabag/CoreBundle/Command/ShowUserCommand.php
+++ b/src/Wallabag/CoreBundle/Command/ShowUserCommand.php
@@ -56,7 +56,7 @@ class ShowUserCommand extends ContainerAwareCommand
             sprintf('Email: %s', $user->getEmail()),
             sprintf('Display name: %s', $user->getName()),
             sprintf('Creation date: %s', $user->getCreatedAt()->format('Y-m-d H:i:s')),
-            sprintf('Last login: %s', $user->getLastLogin() !== null ? $user->getLastLogin()->format('Y-m-d H:i:s') : 'never'),
+            sprintf('Last login: %s', null !== $user->getLastLogin() ? $user->getLastLogin()->format('Y-m-d H:i:s') : 'never'),
             sprintf('2FA activated: %s', $user->isTwoFactorAuthentication() ? 'yes' : 'no'),
         ]);
     }
diff --git a/src/Wallabag/CoreBundle/Controller/ConfigController.php b/src/Wallabag/CoreBundle/Controller/ConfigController.php
index 7e39992d..a89bb780 100644
--- a/src/Wallabag/CoreBundle/Controller/ConfigController.php
+++ b/src/Wallabag/CoreBundle/Controller/ConfigController.php
@@ -348,7 +348,7 @@ class ConfigController extends Controller
         $em = $this->getDoctrine()->getManager();
 
         foreach ($tags as $tag) {
-            if (count($tag->getEntries()) === 0) {
+            if (0 === count($tag->getEntries())) {
                 $em->remove($tag);
             }
         }
diff --git a/src/Wallabag/CoreBundle/Controller/EntryController.php b/src/Wallabag/CoreBundle/Controller/EntryController.php
index b0b74c38..840dc254 100644
--- a/src/Wallabag/CoreBundle/Controller/EntryController.php
+++ b/src/Wallabag/CoreBundle/Controller/EntryController.php
@@ -195,7 +195,7 @@ class EntryController extends Controller
     public function showUnreadAction(Request $request, $page)
     {
         // load the quickstart if no entry in database
-        if ((int) $page === 1 && $this->get('wallabag_core.entry_repository')->countAllEntriesByUser($this->getUser()->getId()) === 0) {
+        if (1 === (int) $page && 0 === $this->get('wallabag_core.entry_repository')->countAllEntriesByUser($this->getUser()->getId())) {
             return $this->redirect($this->generateUrl('quickstart'));
         }
 
diff --git a/src/Wallabag/CoreBundle/Controller/ExportController.php b/src/Wallabag/CoreBundle/Controller/ExportController.php
index 35a22046..7ca89239 100644
--- a/src/Wallabag/CoreBundle/Controller/ExportController.php
+++ b/src/Wallabag/CoreBundle/Controller/ExportController.php
@@ -59,7 +59,7 @@ class ExportController extends Controller
         $methodBuilder = 'getBuilderFor' . $method . 'ByUser';
         $repository = $this->get('wallabag_core.entry_repository');
 
-        if ($category === 'tag_entries') {
+        if ('tag_entries' === $category) {
             $tag = $this->get('wallabag_core.tag_repository')->findOneBySlug($request->query->get('tag'));
 
             $entries = $repository->findAllByTagId(
diff --git a/src/Wallabag/CoreBundle/Controller/TagController.php b/src/Wallabag/CoreBundle/Controller/TagController.php
index be2dff98..616c37f2 100644
--- a/src/Wallabag/CoreBundle/Controller/TagController.php
+++ b/src/Wallabag/CoreBundle/Controller/TagController.php
@@ -65,7 +65,7 @@ class TagController extends Controller
         $em->flush();
 
         // remove orphan tag in case no entries are associated to it
-        if (count($tag->getEntries()) === 0) {
+        if (0 === count($tag->getEntries())) {
             $em->remove($tag);
             $em->flush();
         }
diff --git a/src/Wallabag/CoreBundle/Event/Subscriber/TablePrefixSubscriber.php b/src/Wallabag/CoreBundle/Event/Subscriber/TablePrefixSubscriber.php
index 35902654..fb8f225f 100644
--- a/src/Wallabag/CoreBundle/Event/Subscriber/TablePrefixSubscriber.php
+++ b/src/Wallabag/CoreBundle/Event/Subscriber/TablePrefixSubscriber.php
@@ -42,7 +42,7 @@ class TablePrefixSubscriber implements EventSubscriber
         $classMetadata->setPrimaryTable(['name' => $this->prefix . $classMetadata->getTableName()]);
 
         foreach ($classMetadata->getAssociationMappings() as $fieldName => $mapping) {
-            if ($mapping['type'] === ClassMetadataInfo::MANY_TO_MANY && isset($classMetadata->associationMappings[$fieldName]['joinTable']['name'])) {
+            if (ClassMetadataInfo::MANY_TO_MANY === $mapping['type'] && isset($classMetadata->associationMappings[$fieldName]['joinTable']['name'])) {
                 $mappedTableName = $classMetadata->associationMappings[$fieldName]['joinTable']['name'];
                 $classMetadata->associationMappings[$fieldName]['joinTable']['name'] = $this->prefix . $mappedTableName;
             }
diff --git a/src/Wallabag/CoreBundle/Form/DataTransformer/StringToListTransformer.php b/src/Wallabag/CoreBundle/Form/DataTransformer/StringToListTransformer.php
index cb4bee83..57dbc95e 100644
--- a/src/Wallabag/CoreBundle/Form/DataTransformer/StringToListTransformer.php
+++ b/src/Wallabag/CoreBundle/Form/DataTransformer/StringToListTransformer.php
@@ -48,7 +48,7 @@ class StringToListTransformer implements DataTransformerInterface
      */
     public function reverseTransform($string)
     {
-        if ($string === null) {
+        if (null === $string) {
             return;
         }
 
diff --git a/src/Wallabag/CoreBundle/GuzzleSiteAuthenticator/GrabySiteConfigBuilder.php b/src/Wallabag/CoreBundle/GuzzleSiteAuthenticator/GrabySiteConfigBuilder.php
index da19fe31..2c85da62 100644
--- a/src/Wallabag/CoreBundle/GuzzleSiteAuthenticator/GrabySiteConfigBuilder.php
+++ b/src/Wallabag/CoreBundle/GuzzleSiteAuthenticator/GrabySiteConfigBuilder.php
@@ -58,7 +58,7 @@ class GrabySiteConfigBuilder implements SiteConfigBuilder
     {
         // required by credentials below
         $host = strtolower($host);
-        if (substr($host, 0, 4) === 'www.') {
+        if ('www.' === substr($host, 0, 4)) {
             $host = substr($host, 4);
         }
 
@@ -113,7 +113,7 @@ class GrabySiteConfigBuilder implements SiteConfigBuilder
 
         $extraFields = [];
         foreach ($extraFieldsStrings as $extraField) {
-            if (strpos($extraField, '=') === false) {
+            if (false === strpos($extraField, '=')) {
                 continue;
             }
 
diff --git a/src/Wallabag/CoreBundle/Helper/ContentProxy.php b/src/Wallabag/CoreBundle/Helper/ContentProxy.php
index 1ac7ad83..854acb6a 100644
--- a/src/Wallabag/CoreBundle/Helper/ContentProxy.php
+++ b/src/Wallabag/CoreBundle/Helper/ContentProxy.php
@@ -125,7 +125,7 @@ class ContentProxy
         $date = $value;
 
         // is it a timestamp?
-        if (filter_var($date, FILTER_VALIDATE_INT) !== false) {
+        if (false !== filter_var($date, FILTER_VALIDATE_INT)) {
             $date = '@' . $date;
         }
 
diff --git a/src/Wallabag/CoreBundle/Operator/Doctrine/Matches.php b/src/Wallabag/CoreBundle/Operator/Doctrine/Matches.php
index e6bb03b1..e1610161 100644
--- a/src/Wallabag/CoreBundle/Operator/Doctrine/Matches.php
+++ b/src/Wallabag/CoreBundle/Operator/Doctrine/Matches.php
@@ -16,7 +16,7 @@ class Matches
 {
     public function __invoke($subject, $pattern)
     {
-        if ($pattern[0] === "'") {
+        if ("'" === $pattern[0]) {
             $pattern = sprintf("'%%%s%%'", substr($pattern, 1, -1));
         }
 
diff --git a/src/Wallabag/CoreBundle/Operator/Doctrine/NotMatches.php b/src/Wallabag/CoreBundle/Operator/Doctrine/NotMatches.php
index b7f9da57..8e50f8d6 100644
--- a/src/Wallabag/CoreBundle/Operator/Doctrine/NotMatches.php
+++ b/src/Wallabag/CoreBundle/Operator/Doctrine/NotMatches.php
@@ -16,7 +16,7 @@ class NotMatches
 {
     public function __invoke($subject, $pattern)
     {
-        if ($pattern[0] === "'") {
+        if ("'" === $pattern[0]) {
             $pattern = sprintf("'%%%s%%'", substr($pattern, 1, -1));
         }
 
diff --git a/src/Wallabag/CoreBundle/Operator/PHP/Matches.php b/src/Wallabag/CoreBundle/Operator/PHP/Matches.php
index 987ed2a5..bc0c3f8f 100644
--- a/src/Wallabag/CoreBundle/Operator/PHP/Matches.php
+++ b/src/Wallabag/CoreBundle/Operator/PHP/Matches.php
@@ -16,6 +16,6 @@ class Matches
 {
     public function __invoke($subject, $pattern)
     {
-        return stripos($subject, $pattern) !== false;
+        return false !== stripos($subject, $pattern);
     }
 }
diff --git a/src/Wallabag/CoreBundle/Operator/PHP/NotMatches.php b/src/Wallabag/CoreBundle/Operator/PHP/NotMatches.php
index 68b2676f..bd4d887a 100644
--- a/src/Wallabag/CoreBundle/Operator/PHP/NotMatches.php
+++ b/src/Wallabag/CoreBundle/Operator/PHP/NotMatches.php
@@ -16,6 +16,6 @@ class NotMatches
 {
     public function __invoke($subject, $pattern)
     {
-        return stripos($subject, $pattern) === false;
+        return false === stripos($subject, $pattern);
     }
 }
diff --git a/src/Wallabag/ImportBundle/Import/AbstractImport.php b/src/Wallabag/ImportBundle/Import/AbstractImport.php
index cb46db09..58a234f4 100644
--- a/src/Wallabag/ImportBundle/Import/AbstractImport.php
+++ b/src/Wallabag/ImportBundle/Import/AbstractImport.php
@@ -165,7 +165,7 @@ abstract class AbstractImport implements ImportInterface
             $entryToBeFlushed[] = $entry;
 
             // flush every 20 entries
-            if (($i % 20) === 0) {
+            if (0 === ($i % 20)) {
                 $this->em->flush();
 
                 foreach ($entryToBeFlushed as $entry) {
diff --git a/src/Wallabag/ImportBundle/Import/BrowserImport.php b/src/Wallabag/ImportBundle/Import/BrowserImport.php
index 78077324..b5593180 100644
--- a/src/Wallabag/ImportBundle/Import/BrowserImport.php
+++ b/src/Wallabag/ImportBundle/Import/BrowserImport.php
@@ -171,7 +171,7 @@ abstract class BrowserImport extends AbstractImport
             $entryToBeFlushed[] = $entry;
 
             // flush every 20 entries
-            if (($i % 20) === 0) {
+            if (0 === ($i % 20)) {
                 $this->em->flush();
 
                 foreach ($entryToBeFlushed as $entry) {
diff --git a/src/Wallabag/ImportBundle/Import/ChromeImport.php b/src/Wallabag/ImportBundle/Import/ChromeImport.php
index e3ba636a..09183abe 100644
--- a/src/Wallabag/ImportBundle/Import/ChromeImport.php
+++ b/src/Wallabag/ImportBundle/Import/ChromeImport.php
@@ -45,7 +45,7 @@ class ChromeImport extends BrowserImport
             'created_at' => substr($entry['date_added'], 0, 10),
         ];
 
-        if (array_key_exists('tags', $entry) && $entry['tags'] !== '') {
+        if (array_key_exists('tags', $entry) && '' !== $entry['tags']) {
             $data['tags'] = $entry['tags'];
         }
 
diff --git a/src/Wallabag/ImportBundle/Import/FirefoxImport.php b/src/Wallabag/ImportBundle/Import/FirefoxImport.php
index c18e7e93..73269fe1 100644
--- a/src/Wallabag/ImportBundle/Import/FirefoxImport.php
+++ b/src/Wallabag/ImportBundle/Import/FirefoxImport.php
@@ -45,7 +45,7 @@ class FirefoxImport extends BrowserImport
             'created_at' => substr($entry['dateAdded'], 0, 10),
         ];
 
-        if (array_key_exists('tags', $entry) && $entry['tags'] !== '') {
+        if (array_key_exists('tags', $entry) && '' !== $entry['tags']) {
             $data['tags'] = $entry['tags'];
         }
 
diff --git a/src/Wallabag/ImportBundle/Import/InstapaperImport.php b/src/Wallabag/ImportBundle/Import/InstapaperImport.php
index 7d70154a..7ab69e7a 100644
--- a/src/Wallabag/ImportBundle/Import/InstapaperImport.php
+++ b/src/Wallabag/ImportBundle/Import/InstapaperImport.php
@@ -63,7 +63,7 @@ class InstapaperImport extends AbstractImport
 
         $entries = [];
         $handle = fopen($this->filepath, 'r');
-        while (($data = fgetcsv($handle, 10240)) !== false) {
+        while (false !== ($data = fgetcsv($handle, 10240))) {
             if ('URL' === $data[0]) {
                 continue;
             }
@@ -80,8 +80,8 @@ class InstapaperImport extends AbstractImport
                 'url' => $data[0],
                 'title' => $data[1],
                 'status' => $data[3],
-                'is_archived' => $data[3] === 'Archive' || $data[3] === 'Starred',
-                'is_starred' => $data[3] === 'Starred',
+                'is_archived' => 'Archive' === $data[3] || 'Starred' === $data[3],
+                'is_starred' => 'Starred' === $data[3],
                 'html' => false,
                 'tags' => $tags,
             ];
diff --git a/src/Wallabag/ImportBundle/Import/PocketImport.php b/src/Wallabag/ImportBundle/Import/PocketImport.php
index 7d38826b..dddb87f4 100644
--- a/src/Wallabag/ImportBundle/Import/PocketImport.php
+++ b/src/Wallabag/ImportBundle/Import/PocketImport.php
@@ -149,7 +149,7 @@ class PocketImport extends AbstractImport
         //  - first call get 5k offset 0
         //  - second call get 5k offset 5k
         //  - and so on
-        if (count($entries['list']) === self::NB_ELEMENTS) {
+        if (self::NB_ELEMENTS === count($entries['list'])) {
             ++$run;
 
             return $this->import(self::NB_ELEMENTS * $run);
@@ -175,7 +175,7 @@ class PocketImport extends AbstractImport
      */
     public function parseEntry(array $importedEntry)
     {
-        $url = isset($importedEntry['resolved_url']) && $importedEntry['resolved_url'] !== '' ? $importedEntry['resolved_url'] : $importedEntry['given_url'];
+        $url = isset($importedEntry['resolved_url']) && '' !== $importedEntry['resolved_url'] ? $importedEntry['resolved_url'] : $importedEntry['given_url'];
 
         $existingEntry = $this->em
             ->getRepository('WallabagCoreBundle:Entry')
@@ -194,15 +194,15 @@ class PocketImport extends AbstractImport
         $this->fetchContent($entry, $url);
 
         // 0, 1, 2 - 1 if the item is archived - 2 if the item should be deleted
-        $entry->setArchived($importedEntry['status'] === 1 || $this->markAsRead);
+        $entry->setArchived(1 === $importedEntry['status'] || $this->markAsRead);
 
         // 0 or 1 - 1 If the item is starred
-        $entry->setStarred($importedEntry['favorite'] === 1);
+        $entry->setStarred(1 === $importedEntry['favorite']);
 
         $title = 'Untitled';
-        if (isset($importedEntry['resolved_title']) && $importedEntry['resolved_title'] !== '') {
+        if (isset($importedEntry['resolved_title']) && '' !== $importedEntry['resolved_title']) {
             $title = $importedEntry['resolved_title'];
-        } elseif (isset($importedEntry['given_title']) && $importedEntry['given_title'] !== '') {
+        } elseif (isset($importedEntry['given_title']) && '' !== $importedEntry['given_title']) {
             $title = $importedEntry['given_title'];
         }
 
diff --git a/src/Wallabag/ImportBundle/Import/WallabagV1Import.php b/src/Wallabag/ImportBundle/Import/WallabagV1Import.php
index d585d44d..a35c411e 100644
--- a/src/Wallabag/ImportBundle/Import/WallabagV1Import.php
+++ b/src/Wallabag/ImportBundle/Import/WallabagV1Import.php
@@ -61,7 +61,7 @@ class WallabagV1Import extends WallabagImport
             $data['html'] = $this->fetchingErrorMessage;
         }
 
-        if (array_key_exists('tags', $entry) && $entry['tags'] !== '') {
+        if (array_key_exists('tags', $entry) && '' !== $entry['tags']) {
             $data['tags'] = $entry['tags'];
         }