Walker_PageDropdown::start_el() │ public │ WP 2.1.0

Starts the element output.

Method of the class: Walker_PageDropdown{}

Return

null. Ничего (null).

Usage

$Walker_PageDropdown = new Walker_PageDropdown();
$Walker_PageDropdown->start_el( $output, $data_object, $depth, $args, $current_object_id );

$output(string) (required) (passed by reference — &)

Used to append additional content. Passed by reference.

$data_object(WP_Post) (required)

Page data object.

$depth(int)

Depth of page in reference to parent pages. Used for padding.

$args(array)

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

$current_object_id(int)

ID of the current page.

Notes

• See: Walker::start_el()

Changelog

Walker_PageDropdown::start_el() Walker PageDropdown::start el code ^{WP 6.3}

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";
}