wp_list_pages( array|string $args = '' )

Retrieve or display a list of pages (or hierarchical post type items) in list (li) format.

Description

See also

Parameters

$args

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

  • 'child_of'
    (int) Display only the sub-pages of a single page by ID. Default 0 (all pages).
  • 'authors'
    (string) Comma-separated list of author IDs. Default empty (all authors).
  • 'date_format'
    (string) PHP date format to use for the listed pages. Relies on the 'show_date' parameter. Default is the value of 'date_format' option.
  • 'depth'
    (int) Number of levels in the hierarchy of pages to include in the generated list. Accepts -1 (any depth), 0 (all pages), 1 (top-level pages only), and n (pages to the given n depth). Default 0.
  • 'echo'
    (bool) Whether or not to echo the list of pages. Default true.
  • 'exclude'
    (string) Comma-separated list of page IDs to exclude.
  • 'include'
    (array) Comma-separated list of page IDs to include.
  • 'link_after'
    (string) Text or HTML to follow the page link label. Default null.
  • 'link_before'
    (string) Text or HTML to precede the page link label. Default null.
  • 'post_type'
    (string) Post type to query for. Default 'page'.
  • 'post_status'
    (string|array) Comma-separated list or array of post statuses to include. Default 'publish'.
  • 'show_date'
    (string) Whether to display the page publish or modified date for each page. Accepts 'modified' or any other value. An empty value hides the date.
  • 'sort_column'
    (string) Comma-separated list of column names to sort the pages by. Accepts 'post_author', 'post_date', 'post_title', 'post_name', 'post_modified', 'post_modified_gmt', 'menu_order', 'post_parent', 'ID', 'rand', or 'comment_count'. Default 'post_title'.
  • 'title_li'
    (string) List heading. Passing a null or empty value will result in no heading, and the list will not be wrapped with unordered list <ul> tags. Default 'Pages'.
  • 'item_spacing'
    (string) Whether to preserve whitespace within the menu's HTML. Accepts 'preserve' or 'discard'. Default 'preserve'.
  • 'walker'
    (Walker) Walker instance to use for listing pages. Default empty (Walker_Page).

Default value: ''

Return

(void|string) Void if 'echo' argument is true, HTML list of pages if 'echo' is false.

More Information

The following classes are applied to menu items, i.e. to the HTML <li> tags, generated by wp_list_pages(). Note: The wp_list_pages() and wp_page_menu() functions output the same CSS classes.

All Menu Items

  • .page_item
    This class is added to menu items that correspond to a static page.
  • .page-item-$ID
    This class is added to menu items that correspond to a static page, where $ID is the static page ID.

Current-Page Menu Items

  • .current_page_item
    This class is added to menu items that correspond to the currently rendered static page.

Current-Page Parent Menu Items

  • .current_page_parent
    This class is added to menu items that correspond to the hierarchical parent of the currently rendered static page.

Current-Page Ancestor Menu Items

  • .current_page_ancestor
    This class is added to menu items that correspond to a hierarchical ancestor of the currently rendered static page.

Source

File: wp-includes/post-template.php

function wp_list_pages( $args = '' ) {
	$defaults = array(
		'depth'        => 0,
		'show_date'    => '',
		'date_format'  => get_option( 'date_format' ),
		'child_of'     => 0,
		'exclude'      => '',
		'title_li'     => __( 'Pages' ),
		'echo'         => 1,
		'authors'      => '',
		'sort_column'  => 'menu_order, post_title',
		'link_before'  => '',
		'link_after'   => '',
		'item_spacing' => 'preserve',
		'walker'       => '',
	);

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

	if ( ! in_array( $parsed_args['item_spacing'], array( 'preserve', 'discard' ), true ) ) {
		// Invalid value, fall back to default.
		$parsed_args['item_spacing'] = $defaults['item_spacing'];
	}

	$output       = '';
	$current_page = 0;

	// Sanitize, mostly to keep spaces out.
	$parsed_args['exclude'] = preg_replace( '/[^0-9,]/', '', $parsed_args['exclude'] );

	// Allow plugins to filter an array of excluded pages (but don't put a nullstring into the array).
	$exclude_array = ( $parsed_args['exclude'] ) ? explode( ',', $parsed_args['exclude'] ) : array();

	/**
	 * Filters the array of pages to exclude from the pages list.
	 *
	 * @since 2.1.0
	 *
	 * @param string[] $exclude_array An array of page IDs to exclude.
	 */
	$parsed_args['exclude'] = implode( ',', apply_filters( 'wp_list_pages_excludes', $exclude_array ) );

	$parsed_args['hierarchical'] = 0;

	// Query pages.
	$pages = get_pages( $parsed_args );

	if ( ! empty( $pages ) ) {
		if ( $parsed_args['title_li'] ) {
			$output .= '<li class="pagenav">' . $parsed_args['title_li'] . '<ul>';
		}
		global $wp_query;
		if ( is_page() || is_attachment() || $wp_query->is_posts_page ) {
			$current_page = get_queried_object_id();
		} elseif ( is_singular() ) {
			$queried_object = get_queried_object();
			if ( is_post_type_hierarchical( $queried_object->post_type ) ) {
				$current_page = $queried_object->ID;
			}
		}

		$output .= walk_page_tree( $pages, $parsed_args['depth'], $current_page, $parsed_args );

		if ( $parsed_args['title_li'] ) {
			$output .= '</ul></li>';
		}
	}

	/**
	 * Filters the HTML output of the pages to list.
	 *
	 * @since 1.5.1
	 * @since 4.4.0 `$pages` added as arguments.
	 *
	 * @see wp_list_pages()
	 *
	 * @param string    $output      HTML output of the pages list.
	 * @param array     $parsed_args An array of page-listing arguments. See wp_list_pages()
	 *                               for information on accepted arguments.
	 * @param WP_Post[] $pages       Array of the page objects.
	 */
	$html = apply_filters( 'wp_list_pages', $output, $parsed_args, $pages );

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

Changelog

Version Description
4.7.0 Added the item_spacing argument.
1.5.0 Introduced.

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Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/wp_list_pages