Walker_PageDropdown::start_el
Starts the element output.
Метод класса: Walker_PageDropdown{}
Хуки из метода
Возвращает
null. Ничего (null).
Использование
$Walker_PageDropdown = new Walker_PageDropdown(); $Walker_PageDropdown->start_el( $output, $data_object, $depth, $args, $current_object_id );
- $output(строка) (обязательный) (передается по ссылке — &)
- Used to append additional content. Passed by reference.
- $data_object(WP_Post) (обязательный)
- Page data object.
- $depth(int)
- Depth of page in reference to parent pages. Used for padding.
- $args(массив)
- 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().
По умолчанию:empty array - $current_object_id(int)
- ID of the current page.
Заметки
- Смотрите: Walker::start_el()
Список изменений
| С версии 2.1.0 | Введена. |
| С версии 5.9.0 | Renamed $page to $data_object and $id to $current_object_id to match parent class for PHP 8 named parameter support. |
Код Walker_PageDropdown::start_el() Walker PageDropdown::start el WP 7.0
public function start_el( &$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";
}