diff --git a/src/wp-includes/widgets/class-wp-widget-archives.php b/src/wp-includes/widgets/class-wp-widget-archives.php
index 9d0f3ac8ef..30e4ee0db2 100644
--- a/src/wp-includes/widgets/class-wp-widget-archives.php
+++ b/src/wp-includes/widgets/class-wp-widget-archives.php
@@ -16,14 +16,26 @@
  */
 class WP_Widget_Archives extends WP_Widget {
 
+	/**
+	 * Sets up a new Archives widget instance.
+	 *
+	 * @since 2.8.0
+	 * @access public
+	 */
 	public function __construct() {
 		$widget_ops = array('classname' => 'widget_archive', 'description' => __( 'A monthly archive of your site’s Posts.') );
 		parent::__construct('archives', __('Archives'), $widget_ops);
 	}
 
 	/**
-	 * @param array $args
-	 * @param array $instance
+	 * Outputs the content for the current Archives widget instance.
+	 *
+	 * @since 2.8.0
+	 * @access public
+	 *
+	 * @param array $args     Display arguments including 'before_title', 'after_title',
+	 *                        'before_widget', and 'after_widget'.
+	 * @param array $instance Settings for the current Archives widget instance.
 	 */
 	public function widget( $args, $instance ) {
 		$c = ! empty( $instance['count'] ) ? '1' : '0';
@@ -39,7 +51,7 @@ class WP_Widget_Archives extends WP_Widget {
 
 		if ( $d ) {
 			$dropdown_id = "{$this->id_base}-dropdown-{$this->number}";
-?>
+			?>
 		<label class="screen-reader-text" for="<?php echo esc_attr( $dropdown_id ); ?>"><?php echo $title; ?></label>
 		<select id="<?php echo esc_attr( $dropdown_id ); ?>" name="archive-dropdown" onchange='document.location.href=this.options[this.selectedIndex].value;'>
 			<?php
@@ -81,11 +93,9 @@ class WP_Widget_Archives extends WP_Widget {
 			<?php wp_get_archives( $dropdown_args ); ?>
 
 		</select>
-<?php
-		} else {
-?>
+		<?php } else { ?>
 		<ul>
-<?php
+		<?php
 		/**
 		 * Filter the arguments for the Archives widget.
 		 *
@@ -99,18 +109,24 @@ class WP_Widget_Archives extends WP_Widget {
 			'type'            => 'monthly',
 			'show_post_count' => $c
 		) ) );
-?>
+		?>
 		</ul>
-<?php
+		<?php
 		}
 
 		echo $args['after_widget'];
 	}
 
 	/**
-	 * @param array $new_instance
-	 * @param array $old_instance
-	 * @return array
+	 * Handles updating settings for the current Archives widget instance.
+	 *
+	 * @since 2.8.0
+	 * @access public
+	 *
+	 * @param array $new_instance New settings for this instance as input by the user via
+	 *                            WP_Widget_Archives::form().
+	 * @param array $old_instance Old settings for this instance.
+	 * @return array Updated settings to save.
 	 */
 	public function update( $new_instance, $old_instance ) {
 		$instance = $old_instance;
@@ -123,18 +139,23 @@ class WP_Widget_Archives extends WP_Widget {
 	}
 
 	/**
-	 * @param array $instance
+	 * Outputs the settings form for the Archives widget.
+	 *
+	 * @since 2.8.0
+	 * @access public
+	 *
+	 * @param array $instance Current settings.
 	 */
 	public function form( $instance ) {
 		$instance = wp_parse_args( (array) $instance, array( 'title' => '', 'count' => 0, 'dropdown' => '') );
 		$title = sanitize_text_field( $instance['title'] );
-?>
+		?>
 		<p><label for="<?php echo $this->get_field_id('title'); ?>"><?php _e('Title:'); ?></label> <input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo esc_attr($title); ?>" /></p>
 		<p>
 			<input class="checkbox" type="checkbox"<?php checked( $instance['dropdown'] ); ?> id="<?php echo $this->get_field_id('dropdown'); ?>" name="<?php echo $this->get_field_name('dropdown'); ?>" /> <label for="<?php echo $this->get_field_id('dropdown'); ?>"><?php _e('Display as dropdown'); ?></label>
 			<br/>
 			<input class="checkbox" type="checkbox"<?php checked( $instance['count'] ); ?> id="<?php echo $this->get_field_id('count'); ?>" name="<?php echo $this->get_field_name('count'); ?>" /> <label for="<?php echo $this->get_field_id('count'); ?>"><?php _e('Show post counts'); ?></label>
 		</p>
-<?php
+		<?php
 	}
 }