wp-includes/ms-site.php:392Updates sites in cache.
$sitesarray$update_meta_cachebooloptionaltruefunction update_site_cache( $sites, $update_meta_cache = true ) { if ( ! $sites ) { return; } $site_ids = array(); $site_data = array(); $blog_details_data = array(); foreach ( $sites as $site ) { $site_ids[] = $site->blog_id; $site_data[ $site->blog_id ] = $site; $blog_details_data[ $site->blog_id . 'short' ] = $site; } wp_cache_add_multiple( $site_data, 'sites' ); wp_cache_add_multiple( $blog_details_data, 'blog-details' ); if ( $update_meta_cache ) { update_sitemeta_cache( $site_ids ); }}Introduced in 5.1.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/ms-site.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.