Bump PHPStan analysis to level 6

Author: antograssiot

src/Bridge/Symfony/Bundle/Command/SwaggerCommand.php

@@ -67,14 +67,14 @@ protected function execute(InputInterface $input, OutputInterface $output)
     {
         $documentation = new Documentation($this->resourceNameCollectionFactory->create(), $this->apiTitle, $this->apiDescription, $this->apiVersion, $this->apiFormats);
         $data = $this->documentationNormalizer->normalize($documentation);
-        $content = $input->getOption('yaml') ? Yaml::dump($data, 6, 4, Yaml::DUMP_OBJECT_AS_MAP) : json_encode($data, JSON_PRETTY_PRINT);
+        $content = $input->getOption('yaml') ? Yaml::dump($data, 6, 4, Yaml::DUMP_OBJECT_AS_MAP) : (json_encode($data, JSON_PRETTY_PRINT) ?: '');
         if (!empty($filename = $input->getOption('output')) && \is_string($filename)) {
             file_put_contents($filename, $content);
             $output->writeln(
                 sprintf('Data written to %s', $filename)
             );
         } else {
-            $output->writeln((string) $content);
+            $output->writeln($content);
         }
     }
 }

src/Bridge/Symfony/Routing/IriConverter.php

@@ -96,7 +96,7 @@ public function getItemFromIri(string $iri, array $context = [])
         }
 
         if (isset($attributes['subresource_operation_name'])) {
-            if ($item = $this->getSubresourceData($identifiers, $attributes, $context)) {
+            if (($item = $this->getSubresourceData($identifiers, $attributes, $context)) && !\is_array($item)) {
                 return $item;
             }
 

src/Filter/QueryParameterValidateListener.php

@@ -86,19 +86,19 @@ private function isRequiredFilterValid(string $name, Request $request): bool
             return false;
         }
 
-        $rootName = array_keys($matches)[0] ?? '';
+        $rootName = (string) (array_keys($matches)[0] ?? null);
         if (!$rootName) {
             return false;
         }
 
         if (\is_array($matches[$rootName])) {
             $keyName = array_keys($matches[$rootName])[0];
 
-            $queryParameter = $request->query->get((string) $rootName);
+            $queryParameter = $request->query->get($rootName);
 
             return \is_array($queryParameter) && isset($queryParameter[$keyName]);
         }
 
-        return null !== $request->query->get((string) $rootName);
+        return null !== $request->query->get($rootName);
     }
 }