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Summery Summery
Starts the element output.
Syntax Syntax
Parameters Parameters
- $output
-
(Required) Used to append additional content. Passed by reference.
- $page
-
(Required) Page data object.
- $depth
-
(Optional) Depth of page in reference to parent pages. Used for padding. Default 0.
- $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 value: array()
- $id
-
(Optional) ID of the current page. Default 0 (unused).
Source Source
File: wp-includes/class-walker-page-dropdown.php
public function start_el( &$output, $page, $depth = 0, $args = array(), $id = 0 ) {
$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 == $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";
}
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Changelog Changelog
| Version | Description |
|---|---|
| 2.1.0 | Introduced. |