wp_dropdown_pages( array|string $args = '' )

Retrieve or display a list of pages as a dropdown (select list).

Contents

Description Description

See also See also

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Parameters Parameters

$args

(array|string) (Optional) Array or string of arguments to generate a page dropdown. See get_pages() for additional arguments.

  • 'depth'
    (int) Maximum depth. Default 0.
  • 'child_of'
    (int) Page ID to retrieve child pages of. Default 0.
  • 'selected'
    (int|string) Value of the option that should be selected. Default 0.
  • 'echo'
    (bool|int) Whether to echo or return the generated markup. Accepts 0, 1, or their bool equivalents. Default 1.
  • 'name'
    (string) Value for the 'name' attribute of the select element. Default 'page_id'.
  • 'id'
    (string) Value for the 'id' attribute of the select element.
  • 'class'
    (string) Value for the 'class' attribute of the select element. Default: none. Defaults to the value of $name.
  • 'show_option_none'
    (string) Text to display for showing no pages. Default empty (does not display).
  • 'show_option_no_change'
    (string) Text to display for "no change" option. Default empty (does not display).
  • 'option_none_value'
    (string) Value to use when no page is selected.
  • 'value_field'
    (string) Post field used to populate the 'value' attribute of the option elements. Accepts any valid post field. Default 'ID'.

Default value: ''

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Return Return

(string) HTML content, if not displaying.

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Source Source

File: wp-includes/post-template.php 

function wp_dropdown_pages( $args = '' ) {
	$defaults = array(
		'depth'                 => 0,
		'child_of'              => 0,
		'selected'              => 0,
		'echo'                  => 1,
		'name'                  => 'page_id',
		'id'                    => '',
		'class'                 => '',
		'show_option_none'      => '',
		'show_option_no_change' => '',
		'option_none_value'     => '',
		'value_field'           => 'ID',
	);

	$r = wp_parse_args( $args, $defaults );

	$pages  = get_pages( $r );
	$output = '';
	// Back-compat with old system where both id and name were based on $name argument
	if ( empty( $r['id'] ) ) {
		$r['id'] = $r['name'];
	}

	if ( ! empty( $pages ) ) {
		$class = '';
		if ( ! empty( $r['class'] ) ) {
			$class = " class='" . esc_attr( $r['class'] ) . "'";
		}

		$output = "<select name='" . esc_attr( $r['name'] ) . "'" . $class . " id='" . esc_attr( $r['id'] ) . "'>\n";
		if ( $r['show_option_no_change'] ) {
			$output .= "\t<option value=\"-1\">" . $r['show_option_no_change'] . "</option>\n";
		}
		if ( $r['show_option_none'] ) {
			$output .= "\t<option value=\"" . esc_attr( $r['option_none_value'] ) . '">' . $r['show_option_none'] . "</option>\n";
		}
		$output .= walk_page_dropdown_tree( $pages, $r['depth'], $r );
		$output .= "</select>\n";
	}

	/**
	 * Filters the HTML output of a list of pages as a drop down.
	 *
	 * @since 2.1.0
	 * @since 4.4.0 `$r` and `$pages` added as arguments.
	 *
	 * @param string $output HTML output for drop down list of pages.
	 * @param array  $r      The parsed arguments array.
	 * @param array  $pages  List of WP_Post objects returned by `get_pages()`
	 */
	$html = apply_filters( 'wp_dropdown_pages', $output, $r, $pages );

	if ( $r['echo'] ) {
		echo $html;
	}
	return $html;
}

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Changelog Changelog

Changelog
Version Description
4.3.0 The $class argument was added.
4.2.0 The $value_field argument was added.
2.1.0 Introduced.

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Uses Uses

Uses
Uses Description
wp-includes/formatting.php: esc_attr()

Escaping for HTML attributes.
wp-includes/functions.php: wp_parse_args()

Merge user defined arguments into defaults array.
wp-includes/plugin.php: apply_filters()

Call the functions added to a filter hook.
wp-includes/post-template.php: walk_page_dropdown_tree()

Retrieve HTML dropdown (select) content for page list.
wp-includes/post-template.php: wp_dropdown_pages

Filters the HTML output of a list of pages as a drop down.
wp-includes/post.php: get_pages()

Retrieve a list of pages (or hierarchical post type items).
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User Contributed Notes User Contributed Notes

  1. Skip to note 1 content
    You must log in to vote on the helpfulness of this noteVote results for this note: 1You must log in to vote on the helpfulness of this note
    Contributed by joncomputing —

    In addition, $args can include ‘sort_column’ and other get_pages() parameters, as shown in the page_attributes_meta_box() source code:

        $dropdown_args = array(
            'post_type'        => $post->post_type,
            'exclude_tree'     => $post->ID,
            'selected'         => $post->post_parent,
            'name'             => 'parent_id',
            'show_option_none' => __('(no parent)'),
            'sort_column'      => 'menu_order, post_title',
            'echo'             => 0,
        );
    ...
    $pages = wp_dropdown_pages( $dropdown_args );
  2. Skip to note 2 content
    You must log in to vote on the helpfulness of this noteVote results for this note: 0You must log in to vote on the helpfulness of this note
    Contributed by Codex —

    Dropdown with submit button
    Displays a hierarchical page dropdown list in HTML form with a submit button.

    <li id="pages">
	<h2><?php _e('pages:'); ?></h2>
	<form action="<?php bloginfo('url'); ?>" method="get">
		<?php wp_dropdown_pages(); ?>
		<input type="submit" name="submit" value="view" />
	</form>
</li>

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