Title: Walker_PageDropdown
Published: April 25, 2014
Last modified: April 28, 2025

---

# class Walker_PageDropdown {}

## In this article

 * [Description](https://developer.wordpress.org/reference/classes/walker_pagedropdown/?output_format=md#description)
    - [See also](https://developer.wordpress.org/reference/classes/walker_pagedropdown/?output_format=md#see-also)
 * [Methods](https://developer.wordpress.org/reference/classes/walker_pagedropdown/?output_format=md#methods)
 * [Source](https://developer.wordpress.org/reference/classes/walker_pagedropdown/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/classes/walker_pagedropdown/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/classes/walker_pagedropdown/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/classes/walker_pagedropdown/?output_format=md#wp--skip-link--target)

Core class used to create an HTML drop-down list of pages.

## 󠀁[Description](https://developer.wordpress.org/reference/classes/walker_pagedropdown/?output_format=md#description)󠁿

### 󠀁[See also](https://developer.wordpress.org/reference/classes/walker_pagedropdown/?output_format=md#see-also)󠁿

 * [Walker](https://developer.wordpress.org/reference/classes/walker/)

## 󠀁[Methods](https://developer.wordpress.org/reference/classes/walker_pagedropdown/?output_format=md#methods)󠁿

| Name | Description | 
| [Walker_PageDropdown::start_el](https://developer.wordpress.org/reference/classes/walker_pagedropdown/start_el/) | Starts the element output. |

## 󠀁[Source](https://developer.wordpress.org/reference/classes/walker_pagedropdown/?output_format=md#source)󠁿

    ```php
    class Walker_PageDropdown extends Walker {

    	/**
    	 * What the class handles.
    	 *
    	 * @since 2.1.0
    	 * @var string
    	 *
    	 * @see Walker::$tree_type
    	 */
    	public $tree_type = 'page';

    	/**
    	 * Database fields to use.
    	 *
    	 * @since 2.1.0
    	 * @var string[]
    	 *
    	 * @see Walker::$db_fields
    	 * @todo Decouple this
    	 */
    	public $db_fields = array(
    		'parent' => 'post_parent',
    		'id'     => 'ID',
    	);

    	/**
    	 * Starts the element output.
    	 *
    	 * @since 2.1.0
    	 * @since 5.9.0 Renamed `$page` to `$data_object` and `$id` to `$current_object_id`
    	 *              to match parent class for PHP 8 named parameter support.
    	 *
    	 * @see Walker::start_el()
    	 *
    	 * @param string  $output            Used to append additional content. Passed by reference.
    	 * @param WP_Post $data_object       Page data object.
    	 * @param int     $depth             Optional. Depth of page in reference to parent pages.
    	 *                                   Used for padding. Default 0.
    	 * @param array   $args              Optional. Uses 'selected' argument for selected page to
    	 *                                   set selected HTML attribute for option element. Uses
    	 *                                   'value_field' argument to fill "value" attribute.
    	 *                                   See wp_dropdown_pages(). Default empty array.
    	 * @param int     $current_object_id Optional. ID of the current page. Default 0.
    	 */
    	public function start_el( &$output, $data_object, $depth = 0, $args = array(), $current_object_id = 0 ) {
    		// Restores the more descriptive, specific name for use within this method.
    		$page = $data_object;

    		$pad = str_repeat( ' ', $depth * 3 );

    		if ( ! isset( $args['value_field'] ) || ! isset( $page->{$args['value_field']} ) ) {
    			$args['value_field'] = 'ID';
    		}

    		$output .= "\t<option class=\"level-$depth\" value=\"" . esc_attr( $page->{$args['value_field']} ) . '"';
    		if ( $page->ID === (int) $args['selected'] ) {
    			$output .= ' selected="selected"';
    		}
    		$output .= '>';

    		$title = $page->post_title;
    		if ( '' === $title ) {
    			/* translators: %d: ID of a post. */
    			$title = sprintf( __( '#%d (no title)' ), $page->ID );
    		}

    		/**
    		 * Filters the page title when creating an HTML drop-down list of pages.
    		 *
    		 * @since 3.1.0
    		 *
    		 * @param string  $title Page title.
    		 * @param WP_Post $page  Page data object.
    		 */
    		$title = apply_filters( 'list_pages', $title, $page );

    		$output .= $pad . esc_html( $title );
    		$output .= "</option>\n";
    	}
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/class-walker-page-dropdown.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/6.9.4/src/wp-includes/class-walker-page-dropdown.php#L17)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/class-walker-page-dropdown.php#L17-L97)

## 󠀁[Related](https://developer.wordpress.org/reference/classes/walker_pagedropdown/?output_format=md#related)󠁿

| Uses | Description | 
| [Walker](https://developer.wordpress.org/reference/classes/walker/)`wp-includes/class-wp-walker.php` |

A class for displaying various tree-like structures.

  |

## 󠀁[Changelog](https://developer.wordpress.org/reference/classes/walker_pagedropdown/?output_format=md#changelog)󠁿

| Version | Description | 
| [2.1.0](https://developer.wordpress.org/reference/since/2.1.0/) | Introduced. |

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