<?php // phpcs:ignore WordPress.Files.FileName.InvalidClassFileName
* XMLWriter implementation of the master sitemap buffer.
* @package automattic/jetpack
if ( ! defined( 'ABSPATH' ) ) {
* A buffer for constructing master sitemap xml files using XMLWriter.
class Jetpack_Sitemap_Buffer_Master_XMLWriter extends Jetpack_Sitemap_Buffer_XMLWriter {
* Initialize the buffer with required headers (no root element here).
protected function initialize_buffer() {
$this->writer->writeComment( "generator='jetpack-" . JETPACK__VERSION . "'" );
$this->writer->writeComment( 'Jetpack_Sitemap_Buffer_Master_XMLWriter' );
'type="text/xsl" href="' . $this->finder->construct_sitemap_url( 'sitemap-index.xsl' ) . '"'
* Start the root element and write its namespaces.
protected function start_root() {
$this->writer->startElement( 'sitemapindex' );
$this->writer->writeAttribute( 'xmlns', 'http://www.sitemaps.org/schemas/sitemap/0.9' );
* Append a sitemap entry to the master sitemap.
* @param array $array The sitemap item to append.
protected function append_item( $array ) {
if ( ! empty( $array['sitemap'] ) ) {
$this->array_to_xml( $array );