diff --git a/src/Symfony/Bridge/Doctrine/SchemaListener/MessengerTransportDoctrineSchemaSubscriber.php b/src/Symfony/Bridge/Doctrine/SchemaListener/MessengerTransportDoctrineSchemaSubscriber.php
index 904d62bbf6552..2999d25afe33f 100644
--- a/src/Symfony/Bridge/Doctrine/SchemaListener/MessengerTransportDoctrineSchemaSubscriber.php
+++ b/src/Symfony/Bridge/Doctrine/SchemaListener/MessengerTransportDoctrineSchemaSubscriber.php
@@ -31,7 +31,7 @@ final class MessengerTransportDoctrineSchemaSubscriber implements EventSubscribe
     private $transports;
 
     /**
-     * @param iterable<int, TransportInterface> $transports
+     * @param iterable<mixed, TransportInterface> $transports
      */
     public function __construct(iterable $transports)
     {
diff --git a/src/Symfony/Bridge/Doctrine/SchemaListener/PdoCacheAdapterDoctrineSchemaSubscriber.php b/src/Symfony/Bridge/Doctrine/SchemaListener/PdoCacheAdapterDoctrineSchemaSubscriber.php
index 20ac1ed0efd1e..a46d4fa814cb4 100644
--- a/src/Symfony/Bridge/Doctrine/SchemaListener/PdoCacheAdapterDoctrineSchemaSubscriber.php
+++ b/src/Symfony/Bridge/Doctrine/SchemaListener/PdoCacheAdapterDoctrineSchemaSubscriber.php
@@ -30,7 +30,7 @@ final class PdoCacheAdapterDoctrineSchemaSubscriber implements EventSubscriber
     private $pdoAdapters;
 
     /**
-     * @param iterable<int, PdoAdapter> $pdoAdapters
+     * @param iterable<mixed, PdoAdapter> $pdoAdapters
      */
     public function __construct(iterable $pdoAdapters)
     {
diff --git a/src/Symfony/Bridge/Doctrine/SchemaListener/RememberMeTokenProviderDoctrineSchemaSubscriber.php b/src/Symfony/Bridge/Doctrine/SchemaListener/RememberMeTokenProviderDoctrineSchemaSubscriber.php
index d5805196bdf30..9eec839679ffc 100644
--- a/src/Symfony/Bridge/Doctrine/SchemaListener/RememberMeTokenProviderDoctrineSchemaSubscriber.php
+++ b/src/Symfony/Bridge/Doctrine/SchemaListener/RememberMeTokenProviderDoctrineSchemaSubscriber.php
@@ -28,7 +28,7 @@ final class RememberMeTokenProviderDoctrineSchemaSubscriber implements EventSubs
     private $rememberMeHandlers;
 
     /**
-     * @param iterable<int, RememberMeHandlerInterface> $rememberMeHandlers
+     * @param iterable<mixed, RememberMeHandlerInterface> $rememberMeHandlers
      */
     public function __construct(iterable $rememberMeHandlers)
     {
diff --git a/src/Symfony/Bundle/SecurityBundle/CacheWarmer/ExpressionCacheWarmer.php b/src/Symfony/Bundle/SecurityBundle/CacheWarmer/ExpressionCacheWarmer.php
index d50f710d53038..095286e66538a 100644
--- a/src/Symfony/Bundle/SecurityBundle/CacheWarmer/ExpressionCacheWarmer.php
+++ b/src/Symfony/Bundle/SecurityBundle/CacheWarmer/ExpressionCacheWarmer.php
@@ -21,7 +21,7 @@ class ExpressionCacheWarmer implements CacheWarmerInterface
     private $expressionLanguage;
 
     /**
-     * @param iterable<int, Expression> $expressions
+     * @param iterable<mixed, Expression> $expressions
      */
     public function __construct(iterable $expressions, ExpressionLanguage $expressionLanguage)
     {
diff --git a/src/Symfony/Bundle/SecurityBundle/DependencyInjection/MainConfiguration.php b/src/Symfony/Bundle/SecurityBundle/DependencyInjection/MainConfiguration.php
index e7eb3f0f2804a..546f50b67b4db 100644
--- a/src/Symfony/Bundle/SecurityBundle/DependencyInjection/MainConfiguration.php
+++ b/src/Symfony/Bundle/SecurityBundle/DependencyInjection/MainConfiguration.php
@@ -42,7 +42,7 @@ class MainConfiguration implements ConfigurationInterface
     private $userProviderFactories;
 
     /**
-     * @param array<int, SecurityFactoryInterface|AuthenticatorFactoryInterface> $factories
+     * @param array<array-key, SecurityFactoryInterface|AuthenticatorFactoryInterface> $factories
      */
     public function __construct(array $factories, array $userProviderFactories)
     {
@@ -220,7 +220,7 @@ private function addAccessControlSection(ArrayNodeDefinition $rootNode)
     }
 
     /**
-     * @param array<int, SecurityFactoryInterface|AuthenticatorFactoryInterface> $factories
+     * @param array<array-key, SecurityFactoryInterface|AuthenticatorFactoryInterface> $factories
      */
     private function addFirewallsSection(ArrayNodeDefinition $rootNode, array $factories)
     {
diff --git a/src/Symfony/Bundle/SecurityBundle/DependencyInjection/SecurityExtension.php b/src/Symfony/Bundle/SecurityBundle/DependencyInjection/SecurityExtension.php
index 2cfd73fead5b3..809535e171e27 100644
--- a/src/Symfony/Bundle/SecurityBundle/DependencyInjection/SecurityExtension.php
+++ b/src/Symfony/Bundle/SecurityBundle/DependencyInjection/SecurityExtension.php
@@ -63,9 +63,9 @@ class SecurityExtension extends Extension implements PrependExtensionInterface
     private $requestMatchers = [];
     private $expressions = [];
     private $contextListeners = [];
-    /** @var array<array{0: int, 1: AuthenticatorFactoryInterface|SecurityFactoryInterface}> */
+    /** @var list<array{int, AuthenticatorFactoryInterface|SecurityFactoryInterface}> */
     private $factories = [];
-    /** @var (AuthenticatorFactoryInterface|SecurityFactoryInterface)[] */
+    /** @var list<AuthenticatorFactoryInterface|SecurityFactoryInterface> */
     private $sortedFactories = [];
     private $userProviderFactories = [];
     private $statelessFirewallKeys = [];
diff --git a/src/Symfony/Bundle/SecurityBundle/Security/FirewallContext.php b/src/Symfony/Bundle/SecurityBundle/Security/FirewallContext.php
index 00754e4363cfc..4ebc9c7de0dc7 100644
--- a/src/Symfony/Bundle/SecurityBundle/Security/FirewallContext.php
+++ b/src/Symfony/Bundle/SecurityBundle/Security/FirewallContext.php
@@ -27,6 +27,9 @@ class FirewallContext
     private $logoutListener;
     private $config;
 
+    /**
+     * @param iterable<mixed, callable> $listeners
+     */
     public function __construct(iterable $listeners, ExceptionListener $exceptionListener = null, LogoutListener $logoutListener = null, FirewallConfig $config = null)
     {
         $this->listeners = $listeners;
@@ -40,6 +43,9 @@ public function getConfig()
         return $this->config;
     }
 
+    /**
+     * @return iterable<mixed, callable>
+     */
     public function getListeners(): iterable
     {
         return $this->listeners;
diff --git a/src/Symfony/Component/Config/ResourceCheckerConfigCache.php b/src/Symfony/Component/Config/ResourceCheckerConfigCache.php
index fa12fe9fa2ae1..a0d301c1f1ce6 100644
--- a/src/Symfony/Component/Config/ResourceCheckerConfigCache.php
+++ b/src/Symfony/Component/Config/ResourceCheckerConfigCache.php
@@ -29,13 +29,13 @@ class ResourceCheckerConfigCache implements ConfigCacheInterface
     private $file;
 
     /**
-     * @var iterable<int, ResourceCheckerInterface>
+     * @var iterable<mixed, ResourceCheckerInterface>
      */
     private $resourceCheckers;
 
     /**
-     * @param string                                  $file             The absolute cache path
-     * @param iterable<int, ResourceCheckerInterface> $resourceCheckers The ResourceCheckers to use for the freshness check
+     * @param string                                    $file             The absolute cache path
+     * @param iterable<mixed, ResourceCheckerInterface> $resourceCheckers The ResourceCheckers to use for the freshness check
      */
     public function __construct(string $file, iterable $resourceCheckers = [])
     {
diff --git a/src/Symfony/Component/Console/Helper/HelperSet.php b/src/Symfony/Component/Console/Helper/HelperSet.php
index bab0aec3512c5..719762d242ca9 100644
--- a/src/Symfony/Component/Console/Helper/HelperSet.php
+++ b/src/Symfony/Component/Console/Helper/HelperSet.php
@@ -23,9 +23,7 @@
  */
 class HelperSet implements \IteratorAggregate
 {
-    /**
-     * @var Helper[]
-     */
+    /** @var array<string, Helper> */
     private $helpers = [];
     private $command;
 
diff --git a/src/Symfony/Component/DomCrawler/Crawler.php b/src/Symfony/Component/DomCrawler/Crawler.php
index f64e5b5dfa3af..67f1134764f7a 100644
--- a/src/Symfony/Component/DomCrawler/Crawler.php
+++ b/src/Symfony/Component/DomCrawler/Crawler.php
@@ -62,7 +62,7 @@ class Crawler implements \Countable, \IteratorAggregate
     private $document;
 
     /**
-     * @var \DOMNode[]
+     * @var list<\DOMNode>
      */
     private $nodes = [];
 
diff --git a/src/Symfony/Component/EventDispatcher/GenericEvent.php b/src/Symfony/Component/EventDispatcher/GenericEvent.php
index 51aa47bc00b63..b32a301ae9b51 100644
--- a/src/Symfony/Component/EventDispatcher/GenericEvent.php
+++ b/src/Symfony/Component/EventDispatcher/GenericEvent.php
@@ -172,7 +172,7 @@ public function offsetExists($key)
     /**
      * IteratorAggregate for iterating over the object like an array.
      *
-     * @return \ArrayIterator
+     * @return \ArrayIterator<string, mixed>
      */
     #[\ReturnTypeWillChange]
     public function getIterator()
diff --git a/src/Symfony/Component/Finder/Iterator/DepthRangeFilterIterator.php b/src/Symfony/Component/Finder/Iterator/DepthRangeFilterIterator.php
index 4a9a31b33bfba..f593a3f08233f 100644
--- a/src/Symfony/Component/Finder/Iterator/DepthRangeFilterIterator.php
+++ b/src/Symfony/Component/Finder/Iterator/DepthRangeFilterIterator.php
@@ -16,8 +16,8 @@
  *
  * @author Fabien Potencier <fabien@symfony.com>
  *
- * @template TKey
- * @template TValue
+ * @template-covariant TKey
+ * @template-covariant TValue
  *
  * @extends \FilterIterator<TKey, TValue>
  */
diff --git a/src/Symfony/Component/Form/Button.php b/src/Symfony/Component/Form/Button.php
index 10fc9521c95aa..1ffdd469fcec1 100644
--- a/src/Symfony/Component/Form/Button.php
+++ b/src/Symfony/Component/Form/Button.php
@@ -49,7 +49,7 @@ public function __construct(FormConfigInterface $config)
     /**
      * Unsupported method.
      *
-     * @param mixed $offset
+     * @param string $offset
      *
      * @return bool
      */
@@ -64,7 +64,7 @@ public function offsetExists($offset)
      *
      * This method should not be invoked.
      *
-     * @param mixed $offset
+     * @param string $offset
      *
      * @return FormInterface
      *
@@ -81,8 +81,8 @@ public function offsetGet($offset)
      *
      * This method should not be invoked.
      *
-     * @param mixed $offset
-     * @param mixed $value
+     * @param string        $offset
+     * @param FormInterface $value
      *
      * @return void
      *
@@ -99,7 +99,7 @@ public function offsetSet($offset, $value)
      *
      * This method should not be invoked.
      *
-     * @param mixed $offset
+     * @param string $offset
      *
      * @return void
      *
diff --git a/src/Symfony/Component/Form/Extension/Validator/ViolationMapper/ViolationPath.php b/src/Symfony/Component/Form/Extension/Validator/ViolationMapper/ViolationPath.php
index 64ef514d47d14..625c0b99fff4f 100644
--- a/src/Symfony/Component/Form/Extension/Validator/ViolationMapper/ViolationPath.php
+++ b/src/Symfony/Component/Form/Extension/Validator/ViolationMapper/ViolationPath.php
@@ -17,11 +17,13 @@
 
 /**
  * @author Bernhard Schussek <bschussek@gmail.com>
+ *
+ * @implements \IteratorAggregate<int, string>
  */
 class ViolationPath implements \IteratorAggregate, PropertyPathInterface
 {
     /**
-     * @var string[]
+     * @var list<string>
      */
     private $elements = [];
 
diff --git a/src/Symfony/Component/Form/FormBuilderInterface.php b/src/Symfony/Component/Form/FormBuilderInterface.php
index ff76832fb8afa..52bf5b67922bf 100644
--- a/src/Symfony/Component/Form/FormBuilderInterface.php
+++ b/src/Symfony/Component/Form/FormBuilderInterface.php
@@ -14,7 +14,7 @@
 /**
  * @author Bernhard Schussek <bschussek@gmail.com>
  *
- * @extends \Traversable<string, self>
+ * @extends \Traversable<string, FormBuilderInterface>
  */
 interface FormBuilderInterface extends \Traversable, \Countable, FormConfigBuilderInterface
 {
diff --git a/src/Symfony/Component/Form/FormErrorIterator.php b/src/Symfony/Component/Form/FormErrorIterator.php
index 2b688904eaff2..d1c6fb10b6f2f 100644
--- a/src/Symfony/Component/Form/FormErrorIterator.php
+++ b/src/Symfony/Component/Form/FormErrorIterator.php
@@ -44,7 +44,7 @@ class FormErrorIterator implements \RecursiveIterator, \SeekableIterator, \Array
     private $errors;
 
     /**
-     * @param array<int, FormError|self> $errors
+     * @param list<FormError|self> $errors
      *
      * @throws InvalidArgumentException If the errors are invalid
      */
diff --git a/src/Symfony/Component/Form/Util/OrderedHashMap.php b/src/Symfony/Component/Form/Util/OrderedHashMap.php
index 3af50c3c95861..7d84cbe22ffb4 100644
--- a/src/Symfony/Component/Form/Util/OrderedHashMap.php
+++ b/src/Symfony/Component/Form/Util/OrderedHashMap.php
@@ -82,14 +82,14 @@ class OrderedHashMap implements \ArrayAccess, \IteratorAggregate, \Countable
     /**
      * The keys of the map in the order in which they were inserted or changed.
      *
-     * @var array
+     * @var list<TKey>
      */
     private $orderedKeys = [];
 
     /**
      * References to the cursors of all open iterators.
      *
-     * @var array
+     * @var array<int, int>
      */
     private $managedCursors = [];
 
@@ -116,7 +116,7 @@ public function offsetExists($key)
     /**
      * {@inheritdoc}
      *
-     * @return mixed
+     * @return TValue
      */
     #[\ReturnTypeWillChange]
     public function offsetGet($key)
diff --git a/src/Symfony/Component/Form/Util/OrderedHashMapIterator.php b/src/Symfony/Component/Form/Util/OrderedHashMapIterator.php
index b28a892d0884e..3baa29d894f87 100644
--- a/src/Symfony/Component/Form/Util/OrderedHashMapIterator.php
+++ b/src/Symfony/Component/Form/Util/OrderedHashMapIterator.php
@@ -18,27 +18,27 @@
  *
  * @internal
  *
- * @template TKey
- * @template TValue
+ * @template-covariant TKey of array-key
+ * @template-covariant TValue
  *
  * @implements \Iterator<TKey, TValue>
  */
 class OrderedHashMapIterator implements \Iterator
 {
     /**
-     * @var array
+     * @var array<TKey, TValue>
      */
     private $elements;
 
     /**
-     * @var array
+     * @var list<TKey>
      */
     private $orderedKeys;
 
     /**
      * @var int
      */
-    private $cursor;
+    private $cursor = 0;
 
     /**
      * @var int
@@ -46,26 +46,26 @@ class OrderedHashMapIterator implements \Iterator
     private $cursorId;
 
     /**
-     * @var array
+     * @var array<int, int>
      */
     private $managedCursors;
 
     /**
-     * @var string|int|null
+     * @var TKey|null
      */
     private $key;
 
     /**
-     * @var mixed
+     * @var TValue|null
      */
     private $current;
 
     /**
      * @param array<TKey, TValue> $elements       The elements of the map, indexed by their
      *                                            keys
-     * @param array               $orderedKeys    The keys of the map in the order in which
+     * @param list<TKey>          $orderedKeys    The keys of the map in the order in which
      *                                            they should be iterated
-     * @param array               $managedCursors An array from which to reference the
+     * @param array<int, int>     $managedCursors An array from which to reference the
      *                                            iterator's cursor as long as it is alive.
      *                                            This array is managed by the corresponding
      *                                            {@link OrderedHashMap} instance to support
@@ -105,7 +105,7 @@ public function __destruct()
     /**
      * {@inheritdoc}
      *
-     * @return mixed
+     * @return TValue|null
      */
     #[\ReturnTypeWillChange]
     public function current()
@@ -132,7 +132,7 @@ public function next(): void
     /**
      * {@inheritdoc}
      *
-     * @return mixed
+     * @return TKey|null
      */
     #[\ReturnTypeWillChange]
     public function key()
diff --git a/src/Symfony/Component/HttpFoundation/HeaderBag.php b/src/Symfony/Component/HttpFoundation/HeaderBag.php
index 2f5110287deff..4683a684095a5 100644
--- a/src/Symfony/Component/HttpFoundation/HeaderBag.php
+++ b/src/Symfony/Component/HttpFoundation/HeaderBag.php
@@ -16,7 +16,7 @@
  *
  * @author Fabien Potencier <fabien@symfony.com>
  *
- * @implements \IteratorAggregate<string, array<int, string|null>>
+ * @implements \IteratorAggregate<string, list<string|null>>
  */
 class HeaderBag implements \IteratorAggregate, \Countable
 {
@@ -24,7 +24,7 @@ class HeaderBag implements \IteratorAggregate, \Countable
     protected const LOWER = '-abcdefghijklmnopqrstuvwxyz';
 
     /**
-     * @var array<string, array<int, string|null>>
+     * @var array<string, list<string|null>>
      */
     protected $headers = [];
     protected $cacheControl = [];
@@ -255,7 +255,7 @@ public function removeCacheControlDirective(string $key)
     /**
      * Returns an iterator for headers.
      *
-     * @return \ArrayIterator<string, array<int, string|null>>
+     * @return \ArrayIterator<string, list<string|null>>
      */
     #[\ReturnTypeWillChange]
     public function getIterator()
diff --git a/src/Symfony/Component/HttpKernel/Kernel.php b/src/Symfony/Component/HttpKernel/Kernel.php
index c332534c7b379..1f8a2c37b5d8d 100644
--- a/src/Symfony/Component/HttpKernel/Kernel.php
+++ b/src/Symfony/Component/HttpKernel/Kernel.php
@@ -58,7 +58,7 @@ class_exists(ConfigCache::class);
 abstract class Kernel implements KernelInterface, RebootableInterface, TerminableInterface
 {
     /**
-     * @var BundleInterface[]
+     * @var array<string, BundleInterface>
      */
     protected $bundles = [];
 
diff --git a/src/Symfony/Component/HttpKernel/KernelInterface.php b/src/Symfony/Component/HttpKernel/KernelInterface.php
index 016c5f610cb13..41135a6d80bf9 100644
--- a/src/Symfony/Component/HttpKernel/KernelInterface.php
+++ b/src/Symfony/Component/HttpKernel/KernelInterface.php
@@ -31,7 +31,7 @@ interface KernelInterface extends HttpKernelInterface
     /**
      * Returns an array of bundles to register.
      *
-     * @return iterable<BundleInterface>
+     * @return iterable<mixed, BundleInterface>
      */
     public function registerBundles();
 
@@ -55,7 +55,7 @@ public function shutdown();
     /**
      * Gets the registered bundle instances.
      *
-     * @return BundleInterface[]
+     * @return array<string, BundleInterface>
      */
     public function getBundles();
 
diff --git a/src/Symfony/Component/Intl/Data/Bundle/Reader/BufferedBundleReader.php b/src/Symfony/Component/Intl/Data/Bundle/Reader/BufferedBundleReader.php
index 4b145120e2f2b..504ad0c482acf 100644
--- a/src/Symfony/Component/Intl/Data/Bundle/Reader/BufferedBundleReader.php
+++ b/src/Symfony/Component/Intl/Data/Bundle/Reader/BufferedBundleReader.php
@@ -21,6 +21,7 @@
 class BufferedBundleReader implements BundleReaderInterface
 {
     private $reader;
+    /** @var RingBuffer<string, mixed> */
     private $buffer;
 
     /**
diff --git a/src/Symfony/Component/Intl/Data/Util/RingBuffer.php b/src/Symfony/Component/Intl/Data/Util/RingBuffer.php
index ec6708face060..2ab2a63897fde 100644
--- a/src/Symfony/Component/Intl/Data/Util/RingBuffer.php
+++ b/src/Symfony/Component/Intl/Data/Util/RingBuffer.php
@@ -22,12 +22,23 @@
  *
  * @author Bernhard Schussek <bschussek@gmail.com>
  *
+ * @template TKey of array-key
+ * @template TValue
+ *
+ * @implements \ArrayAccess<TKey, TValue>
+ *
  * @internal
  */
 class RingBuffer implements \ArrayAccess
 {
+    /**
+     * @var array<int, TValue>
+     */
     private $values = [];
 
+    /**
+     * @var array<TKey, int>
+     */
     private $indices = [];
 
     private $cursor = 0;
@@ -50,7 +61,7 @@ public function offsetExists($key): bool
     /**
      * {@inheritdoc}
      *
-     * @return mixed
+     * @return TValue
      */
     #[\ReturnTypeWillChange]
     public function offsetGet($key)
diff --git a/src/Symfony/Component/Ldap/Adapter/CollectionInterface.php b/src/Symfony/Component/Ldap/Adapter/CollectionInterface.php
index 8a42c28797215..88f1f81380044 100644
--- a/src/Symfony/Component/Ldap/Adapter/CollectionInterface.php
+++ b/src/Symfony/Component/Ldap/Adapter/CollectionInterface.php
@@ -22,7 +22,7 @@
 interface CollectionInterface extends \Countable, \IteratorAggregate, \ArrayAccess
 {
     /**
-     * @return array<int, Entry>
+     * @return list<Entry>
      */
     public function toArray();
 }
diff --git a/src/Symfony/Component/Ldap/Adapter/ExtLdap/Collection.php b/src/Symfony/Component/Ldap/Adapter/ExtLdap/Collection.php
index 9ca75514c37d0..460fcc01597ba 100644
--- a/src/Symfony/Component/Ldap/Adapter/ExtLdap/Collection.php
+++ b/src/Symfony/Component/Ldap/Adapter/ExtLdap/Collection.php
@@ -22,6 +22,7 @@ class Collection implements CollectionInterface
 {
     private $connection;
     private $search;
+    /** @var list<Entry>|null */
     private $entries;
 
     public function __construct(Connection $connection, Query $search)
diff --git a/src/Symfony/Component/PropertyAccess/PropertyPath.php b/src/Symfony/Component/PropertyAccess/PropertyPath.php
index faae716b6a0c6..e99c019a8d313 100644
--- a/src/Symfony/Component/PropertyAccess/PropertyPath.php
+++ b/src/Symfony/Component/PropertyAccess/PropertyPath.php
@@ -32,7 +32,7 @@ class PropertyPath implements \IteratorAggregate, PropertyPathInterface
     /**
      * The elements of the property path.
      *
-     * @var string[]
+     * @var list<string>
      */
     private $elements = [];
 
diff --git a/src/Symfony/Component/PropertyAccess/PropertyPathInterface.php b/src/Symfony/Component/PropertyAccess/PropertyPathInterface.php
index 1716ae2c1511b..d58ad328fe45e 100644
--- a/src/Symfony/Component/PropertyAccess/PropertyPathInterface.php
+++ b/src/Symfony/Component/PropertyAccess/PropertyPathInterface.php
@@ -49,7 +49,7 @@ public function getParent();
     /**
      * Returns the elements of the property path as array.
      *
-     * @return string[]
+     * @return list<string>
      */
     public function getElements();
 
diff --git a/src/Symfony/Component/PropertyAccess/PropertyPathIterator.php b/src/Symfony/Component/PropertyAccess/PropertyPathIterator.php
index 3445db2cb0dc4..a3335e31b5425 100644
--- a/src/Symfony/Component/PropertyAccess/PropertyPathIterator.php
+++ b/src/Symfony/Component/PropertyAccess/PropertyPathIterator.php
@@ -16,6 +16,8 @@
  * information about the current element.
  *
  * @author Bernhard Schussek <bschussek@gmail.com>
+ *
+ * @extends \ArrayIterator<int, string>
  */
 class PropertyPathIterator extends \ArrayIterator implements PropertyPathIteratorInterface
 {
diff --git a/src/Symfony/Component/PropertyInfo/PropertyInfoExtractor.php b/src/Symfony/Component/PropertyInfo/PropertyInfoExtractor.php
index dd2cc9f3eff04..eca169f1880a4 100644
--- a/src/Symfony/Component/PropertyInfo/PropertyInfoExtractor.php
+++ b/src/Symfony/Component/PropertyInfo/PropertyInfoExtractor.php
@@ -27,11 +27,11 @@ class PropertyInfoExtractor implements PropertyInfoExtractorInterface, PropertyI
     private $initializableExtractors;
 
     /**
-     * @param iterable<int, PropertyListExtractorInterface>          $listExtractors
-     * @param iterable<int, PropertyTypeExtractorInterface>          $typeExtractors
-     * @param iterable<int, PropertyDescriptionExtractorInterface>   $descriptionExtractors
-     * @param iterable<int, PropertyAccessExtractorInterface>        $accessExtractors
-     * @param iterable<int, PropertyInitializableExtractorInterface> $initializableExtractors
+     * @param iterable<mixed, PropertyListExtractorInterface>          $listExtractors
+     * @param iterable<mixed, PropertyTypeExtractorInterface>          $typeExtractors
+     * @param iterable<mixed, PropertyDescriptionExtractorInterface>   $descriptionExtractors
+     * @param iterable<mixed, PropertyAccessExtractorInterface>        $accessExtractors
+     * @param iterable<mixed, PropertyInitializableExtractorInterface> $initializableExtractors
      */
     public function __construct(iterable $listExtractors = [], iterable $typeExtractors = [], iterable $descriptionExtractors = [], iterable $accessExtractors = [], iterable $initializableExtractors = [])
     {
@@ -101,8 +101,8 @@ public function isInitializable(string $class, string $property, array $context
     /**
      * Iterates over registered extractors and return the first value found.
      *
-     * @param iterable<int, object> $extractors
-     * @param list<mixed>           $arguments
+     * @param iterable<mixed, object> $extractors
+     * @param list<mixed>             $arguments
      *
      * @return mixed
      */
diff --git a/src/Symfony/Component/Security/Core/Authentication/AuthenticationProviderManager.php b/src/Symfony/Component/Security/Core/Authentication/AuthenticationProviderManager.php
index 35ea7f4ffd0e8..f8da847831510 100644
--- a/src/Symfony/Component/Security/Core/Authentication/AuthenticationProviderManager.php
+++ b/src/Symfony/Component/Security/Core/Authentication/AuthenticationProviderManager.php
@@ -47,8 +47,8 @@ class AuthenticationProviderManager implements AuthenticationManagerInterface
     private $eventDispatcher;
 
     /**
-     * @param iterable<int, AuthenticationProviderInterface> $providers        An iterable with AuthenticationProviderInterface instances as values
-     * @param bool                                           $eraseCredentials Whether to erase credentials after authentication or not
+     * @param iterable<mixed, AuthenticationProviderInterface> $providers        An iterable with AuthenticationProviderInterface instances as values
+     * @param bool                                             $eraseCredentials Whether to erase credentials after authentication or not
      *
      * @throws \InvalidArgumentException
      */
diff --git a/src/Symfony/Component/Security/Core/Authorization/TraceableAccessDecisionManager.php b/src/Symfony/Component/Security/Core/Authorization/TraceableAccessDecisionManager.php
index f91a3df20de20..ab9842064b53c 100644
--- a/src/Symfony/Component/Security/Core/Authorization/TraceableAccessDecisionManager.php
+++ b/src/Symfony/Component/Security/Core/Authorization/TraceableAccessDecisionManager.php
@@ -26,6 +26,7 @@ class TraceableAccessDecisionManager implements AccessDecisionManagerInterface
 {
     private $manager;
     private $strategy;
+    /** @var iterable<mixed, VoterInterface> */
     private $voters = [];
     private $decisionLog = []; // All decision logs
     private $currentLog = [];  // Logs being filled in
@@ -98,7 +99,7 @@ public function getStrategy(): string
     }
 
     /**
-     * @return iterable<int, VoterInterface>
+     * @return iterable<mixed, VoterInterface>
      */
     public function getVoters(): iterable
     {
diff --git a/src/Symfony/Component/Security/Core/User/ChainUserProvider.php b/src/Symfony/Component/Security/Core/User/ChainUserProvider.php
index bcea41d0db860..148b239f1147c 100644
--- a/src/Symfony/Component/Security/Core/User/ChainUserProvider.php
+++ b/src/Symfony/Component/Security/Core/User/ChainUserProvider.php
@@ -27,7 +27,7 @@ class ChainUserProvider implements UserProviderInterface, PasswordUpgraderInterf
     private $providers;
 
     /**
-     * @param iterable<int, UserProviderInterface> $providers
+     * @param iterable<array-key, UserProviderInterface> $providers
      */
     public function __construct(iterable $providers)
     {
diff --git a/src/Symfony/Component/Security/Http/Firewall/ContextListener.php b/src/Symfony/Component/Security/Http/Firewall/ContextListener.php
index 59fdd75fdef62..e09af80d76be9 100644
--- a/src/Symfony/Component/Security/Http/Firewall/ContextListener.php
+++ b/src/Symfony/Component/Security/Http/Firewall/ContextListener.php
@@ -58,7 +58,7 @@ class ContextListener extends AbstractListener
     private $sessionTrackerEnabler;
 
     /**
-     * @param iterable<int, UserProviderInterface> $userProviders
+     * @param iterable<mixed, UserProviderInterface> $userProviders
      */
     public function __construct(TokenStorageInterface $tokenStorage, iterable $userProviders, string $contextKey, LoggerInterface $logger = null, EventDispatcherInterface $dispatcher = null, AuthenticationTrustResolverInterface $trustResolver = null, callable $sessionTrackerEnabler = null)
     {
diff --git a/src/Symfony/Component/Security/Http/FirewallMap.php b/src/Symfony/Component/Security/Http/FirewallMap.php
index 0ffd068dfbc28..cc9d853e96b42 100644
--- a/src/Symfony/Component/Security/Http/FirewallMap.php
+++ b/src/Symfony/Component/Security/Http/FirewallMap.php
@@ -24,8 +24,14 @@
  */
 class FirewallMap implements FirewallMapInterface
 {
+    /**
+     * @var list<array{RequestMatcherInterface, list<callable>, ExceptionListener|null, LogoutListener|null}>
+     */
     private $map = [];
 
+    /**
+     * @param list<callable> $listeners
+     */
     public function add(RequestMatcherInterface $requestMatcher = null, array $listeners = [], ExceptionListener $exceptionListener = null, LogoutListener $logoutListener = null)
     {
         $this->map[] = [$requestMatcher, $listeners, $exceptionListener, $logoutListener];
diff --git a/src/Symfony/Component/Security/Http/FirewallMapInterface.php b/src/Symfony/Component/Security/Http/FirewallMapInterface.php
index 133de2b67067d..480ea8ad6b4f1 100644
--- a/src/Symfony/Component/Security/Http/FirewallMapInterface.php
+++ b/src/Symfony/Component/Security/Http/FirewallMapInterface.php
@@ -35,7 +35,7 @@ interface FirewallMapInterface
      * If there is no logout listener, the third element of the outer array
      * must be null.
      *
-     * @return array{list<callable>, ExceptionListener, LogoutListener}
+     * @return array{iterable<mixed, callable>, ExceptionListener, LogoutListener}
      */
     public function getListeners(Request $request);
 }
diff --git a/src/Symfony/Component/Templating/PhpEngine.php b/src/Symfony/Component/Templating/PhpEngine.php
index 93a334cefb75b..151ddeb2579ba 100644
--- a/src/Symfony/Component/Templating/PhpEngine.php
+++ b/src/Symfony/Component/Templating/PhpEngine.php
@@ -20,6 +20,8 @@
 /**
  * PhpEngine is an engine able to render PHP templates.
  *
+ * @implements \ArrayAccess<string, HelperInterface>
+ *
  * @author Fabien Potencier <fabien@symfony.com>
  */
 class PhpEngine implements EngineInterface, \ArrayAccess
diff --git a/src/Symfony/Component/Validator/ConstraintViolationList.php b/src/Symfony/Component/Validator/ConstraintViolationList.php
index 6ed9666d5ce6c..3d459b2c18c91 100644
--- a/src/Symfony/Component/Validator/ConstraintViolationList.php
+++ b/src/Symfony/Component/Validator/ConstraintViolationList.php
@@ -21,16 +21,16 @@
 class ConstraintViolationList implements \IteratorAggregate, ConstraintViolationListInterface
 {
     /**
-     * @var ConstraintViolationInterface[]
+     * @var list<ConstraintViolationInterface>
      */
     private $violations = [];
 
     /**
      * Creates a new constraint violation list.
      *
-     * @param ConstraintViolationInterface[] $violations The constraint violations to add to the list
+     * @param iterable<mixed, ConstraintViolationInterface> $violations The constraint violations to add to the list
      */
-    public function __construct(array $violations = [])
+    public function __construct(iterable $violations = [])
     {
         foreach ($violations as $violation) {
             $this->add($violation);