update_site_cache() WordPress Function
This function updates the site's cache.
update_site_cache( array $sites, bool $update_meta_cache = true ) #
Updates sites in cache.
Parameters
- $sites
- (array)(Required)Array of site objects. 
- $update_meta_cache
- (bool)(Optional)Whether to update site meta cache. - Default value: true 
Source
File: wp-includes/ms-site.php
function 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 );
	}
}
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Changelog
| Version | Description | 
|---|---|
| 5.1.0 | Introduced the $update_meta_cacheparameter. | 
| 4.6.0 | Introduced. |