'parent', 'id' => 'term_id'); /** * Start the element output. * * @see Walker::start_el() * @since 2.1.0 * * @param string $output Passed by reference. Used to append additional content. * @param object $category Category data object. * @param int $depth Depth of category. Used for padding. * @param array $args Uses 'selected', 'show_count', and 'value_field' keys, if they exist. * See {@see wp_dropdown_categories()}. */ public function start_el( &$output, $category, $depth = 0, $args = array(), $id = 0 ) { $pad = str_repeat(' ', $depth * 3); /** This filter is documented in wp-includes/category-template.php */ $cat_name = apply_filters( 'list_cats', $category->name, $category ); if ( isset( $args['value_field'] ) && isset( $category->{$args['value_field']} ) ) { $value_field = $args['value_field']; } else { $value_field = 'term_id'; } $output .= "\t{$value_field} ) . "\""; // Type-juggling causes false matches, so we force everything to a string. if ( (string) $category->{$value_field} === (string) $args['selected'] ) $output .= ' selected="selected"'; $output .= '>'; $output .= $pad.$cat_name; if ( $args['show_count'] ) $output .= '  ('. number_format_i18n( $category->count ) .')'; $output .= "\n"; } }