_prime_site_caches()
Adds any sites from the given IDs to the cache that do not already exist in cache.
Adds any sites from the given IDs to the cache that do not already exist in cache.
Adds metadata to a site.
Clean the blog cache
Removes metadata matching criteria from a site.
Deletes everything from site meta matching meta key.
Retrieves site data given a site ID or site object.
Retrieves metadata for a site.
Retrieves a list of sites matching requested arguments.
Updates sites in cache.
Updates metadata for a site.