diff --git a/framework/console/Controller.php b/framework/console/Controller.php
index 579b5977830..908e50fcdb4 100644
--- a/framework/console/Controller.php
+++ b/framework/console/Controller.php
@@ -28,8 +28,8 @@
  * where `<route>` is a route to a controller action and the params will be populated as properties of a command.
  * See [[options()]] for details.
  *
- * @property-read string $help
- * @property-read string $helpSummary
+ * @property-read string $help The help information for this controller.
+ * @property-read string $helpSummary The one-line short summary describing this controller.
  * @property-read array $passedOptionValues The properties corresponding to the passed options.
  * @property-read array $passedOptions The names of the options passed during execution.
  *
diff --git a/framework/web/Controller.php b/framework/web/Controller.php
index 3e4c52e05ae..2177a7f0bfc 100644
--- a/framework/web/Controller.php
+++ b/framework/web/Controller.php
@@ -17,6 +17,10 @@
  *
  * For more details and usage information on Controller, see the [guide article on controllers](guide:structure-controllers).
  *
+ * @property Request $request The request object.
+ * @property Response $response The response object.
+ * @property View $view The view object that can be used to render views or view files.
+ *
  * @author Qiang Xue <qiang.xue@gmail.com>
  * @since 2.0
  */
diff --git a/framework/web/CookieCollection.php b/framework/web/CookieCollection.php
index 597fc2f5fd7..3791b545326 100644
--- a/framework/web/CookieCollection.php
+++ b/framework/web/CookieCollection.php
@@ -18,6 +18,7 @@
  * For more details and usage information on CookieCollection, see the [guide article on handling cookies](guide:runtime-sessions-cookies).
  *
  * @property-read int $count The number of cookies in the collection.
+ * @property-read ArrayIterator $iterator An iterator for traversing the cookies in the collection.
  *
  * @author Qiang Xue <qiang.xue@gmail.com>
  * @since 2.0
diff --git a/framework/web/HeaderCollection.php b/framework/web/HeaderCollection.php
index 17eaadefd6d..64cae459b10 100644
--- a/framework/web/HeaderCollection.php
+++ b/framework/web/HeaderCollection.php
@@ -12,6 +12,9 @@
 /**
  * HeaderCollection is used by [[Response]] to maintain the currently registered HTTP headers.
  *
+ * @property-read int $count The number of headers in the collection.
+ * @property-read \ArrayIterator $iterator An iterator for traversing the headers in the collection.
+ *
  * @author Qiang Xue <qiang.xue@gmail.com>
  * @since 2.0
  */
diff --git a/framework/web/Session.php b/framework/web/Session.php
index bcb7eaff1b2..e9c3ebd5c48 100644
--- a/framework/web/Session.php
+++ b/framework/web/Session.php
@@ -57,6 +57,7 @@
  * @property bool $hasSessionId Whether the current request has sent the session ID.
  * @property string $id The current session ID.
  * @property-read bool $isActive Whether the session has started.
+ * @property-read SessionIterator $iterator An iterator for traversing the session variables.
  * @property string $name The current session name.
  * @property string $savePath The current session save path, defaults to '/tmp'.
  * @property int $timeout The number of seconds after which data will be seen as 'garbage' and cleaned up. The