Merge 3.4

Author: soyuka

CHANGELOG.md

@@ -236,6 +236,12 @@ Notes:
 
 * [0d5f35683](https://github.com/api-platform/core/commit/0d5f356839eb6aa9f536044abe4affa736553e76) feat(laravel): laravel component (#5882)
 
+## v3.4.10
+
+### Bug fixes
+
+* [2ee5eb496](https://github.com/api-platform/core/commit/2ee5eb4967f507d04ae07280914bea3c712d8cad) fix(symfony): mercure exception formatting by calling array_keys() (#6879)
+
 ## v3.4.9
 
 ### Bug fixes

src/Symfony/Doctrine/EventListener/PublishMercureUpdatesListener.php

@@ -189,7 +189,7 @@ private function storeObjectToPublish(object $object, string $property): void
 
         foreach ($options as $key => $value) {
             if (!isset(self::ALLOWED_KEYS[$key])) {
-                throw new InvalidArgumentException(\sprintf('The option "%s" set in the "mercure" attribute of the "%s" resource does not exist. Existing options: "%s"', $key, $resourceClass, implode('", "', self::ALLOWED_KEYS)));
+                throw new InvalidArgumentException(\sprintf('The option "%s" set in the "mercure" attribute of the "%s" resource does not exist. Existing options: "%s"', $key, $resourceClass, implode('", "', array_keys(self::ALLOWED_KEYS))));
             }
         }