Registers sitemap rewrite tags and routing rules.

Registers and sets up the functionality for all supported sitemaps.

Renders sitemap templates based on rewrite rules.

Determines whether sitemaps are enabled or not.

Class WP_Sitemaps_Index.

WP_Sitemaps_Index constructor.

Builds the URL for the sitemap index.

Gets a sitemap list for the index.

Posts XML sitemap provider.

WP_Sitemaps_Posts constructor.