list_pages

Description

Usage

add_filter( 'list_pages', 'your_function_name', 10, 2 );

Parameters

$title (string)

Page title.

$page (WP_Post)

Page data object.

Return Value

The filtered value.

Examples

/**
 * Example of using the 'list_pages' filter to modify page titles in a dropdown.
 * This example appends the page ID in parentheses to the page title if the page
 * is not the homepage.
 */
add_filter( 'list_pages', function( $title, $page ) {
	// Check if the current page is the homepage.
	// If it is, we don't want to append the ID.
	if ( ! is_front_page() && $page->ID !== get_option('page_for_posts') ) {
		// Append the page ID in parentheses to the title.
		$title .= ' (' . $page->ID . ')';
	}

	return $title;
}, 10, 2 ); // Priority 10, accepts 2 arguments ($title, $page).

Placement

This code should be placed in the functions.php file of your active theme, a custom plugin, or using a code snippets plugin.

Source Code

src/includes/class-walker-group-dropdown.php:96
src/includes/class-walker-group-dropdown.php:417

public function start_el( &$output, $page, $depth = 0, $args = array(), $id = 0 ) {

		$padding = apply_filters(
			'ulgm_group_mangement_group_dropdown_padding',
			[
				'input'      => '— ',
				'multiplier' => $depth * 1
			],
			$depth
		);

		$pad = str_repeat( $padding['input'], $padding['multiplier'] );

		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 == $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.
		 *
		 * @param string  $title Page title.
		 * @param WP_Post $page  Page data object.
		 *
		 * @since 3.1.0
		 *
		 */
		$title = apply_filters( 'list_pages', $title, $page );

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