diff --git a/src/Bundle/ChillPersonBundle/Serializer/Normalizer/PersonDocGenNormalizer.php b/src/Bundle/ChillPersonBundle/Serializer/Normalizer/PersonDocGenNormalizer.php
index d1d6f0a95..22ce96ab7 100644
--- a/src/Bundle/ChillPersonBundle/Serializer/Normalizer/PersonDocGenNormalizer.php
+++ b/src/Bundle/ChillPersonBundle/Serializer/Normalizer/PersonDocGenNormalizer.php
@@ -32,6 +32,7 @@ use Symfony\Component\Serializer\Normalizer\NormalizerAwareInterface;
 use Symfony\Component\Serializer\Normalizer\NormalizerAwareTrait;
 use Symfony\Contracts\Translation\TranslatorInterface;
 
+use function array_key_exists;
 use function array_map;
 use function implode;
 use function in_array;
@@ -43,6 +44,8 @@ class PersonDocGenNormalizer implements
 {
     use NormalizerAwareTrait;
 
+    private const CIRCULAR_KEY = 'person:circular';
+
     private PersonRenderInterface $personRender;
 
     private RelationshipRepository $relationshipRepository;
@@ -53,8 +56,6 @@ class PersonDocGenNormalizer implements
 
     private TranslatorInterface $translator;
 
-    private const CIRCULAR_KEY = 'person:circular';
-
     public function __construct(
         PersonRenderInterface $personRender,
         RelationshipRepository $relationshipRepository,
@@ -71,14 +72,13 @@ class PersonDocGenNormalizer implements
 
     public function normalize($person, $format = null, array $context = [])
     {
-
         try {
             $context = $this->addCircularToContext($person, $context);
         } catch (CircularReferenceException $circularReferenceException) {
             return [
                 'isNull' => true,
                 'isCircular' => true,
-                'text' => ''
+                'text' => '',
             ];
         }
 
@@ -192,23 +192,25 @@ class PersonDocGenNormalizer implements
             );
     }
 
-    private function addCircularToContext($person, $context) {
+    private function addCircularToContext($person, $context)
+    {
         if (null === $person) {
             $key = 'n';
         } else {
             $key = spl_object_hash($person);
         }
 
-        if (!\array_key_exists(self::CIRCULAR_KEY, $context)) {
+        if (!array_key_exists(self::CIRCULAR_KEY, $context)) {
             $context[self::CIRCULAR_KEY] = [$key];
 
             return $context;
         }
 
-        $occurences = array_reduce($context[self::CIRCULAR_KEY], function ($carry, $item) use ($key) {
+        $occurences = array_reduce($context[self::CIRCULAR_KEY], static function ($carry, $item) use ($key) {
             if ($key === $item) {
-                $carry++;
+                ++$carry;
             }
+
             return $carry;
         }, 0);
 
@@ -221,7 +223,6 @@ class PersonDocGenNormalizer implements
         return $context;
     }
 
-
     private function hasGroup($context, string $group): bool
     {
         $groups = $context[AbstractNormalizer::GROUPS] ?? [];