public function SitemapGenerator::generate_sitemap_index in Simple XML sitemap 8

Generates and returns the sitemap index.

Parameters

array $sitemap: All sitemap chunks keyed by the chunk ID.

Return value

string sitemap index

File

src/SitemapGenerator.php, line 100

Contains \Drupal\simplesitemap\SitemapGenerator.

Class

SitemapGenerator

SitemapGenerator class.

Namespace

Drupal\simplesitemap

Code

public function generate_sitemap_index($sitemap) {
  $writer = new XMLWriter();
  $writer
    ->openMemory();
  $writer
    ->setIndent(TRUE);
  $writer
    ->startDocument(self::XML_VERSION, self::ENCODING);
  $writer
    ->startElement('sitemapindex');
  $writer
    ->writeAttribute('xmlns', self::XMLNS);
  foreach ($sitemap as $chunk_id => $chunk_data) {
    $writer
      ->startElement('sitemap');
    $writer
      ->writeElement('loc', $GLOBALS['base_url'] . '/sitemaps/' . $chunk_id . '/' . 'sitemap.xml');
    $writer
      ->writeElement('lastmod', date_iso8601($chunk_data->sitemap_created));
    $writer
      ->endElement();
  }
  $writer
    ->endElement();
  $writer
    ->endDocument();
  return $writer
    ->outputMemory();
}