This function’s access is marked private. This means it is not intended for use by plugin or theme developers, only in other core functions. It is listed here for completeness. Use update_network_cache() instead.

_prime_network_caches( array $network_ids )

Adds any networks from the given IDs to the cache that do not already exist in cache.

Description

See also

Parameters

$network_ids

(array) (Required) Array of network IDs.

Source

File: wp-includes/ms-blogs.php 

function _prime_network_caches( $network_ids ) {
	global $wpdb;

	$non_cached_ids = _get_non_cached_ids( $network_ids, 'networks' );
	if ( !empty( $non_cached_ids ) ) {
		$fresh_networks = $wpdb->get_results( sprintf( "SELECT $wpdb->site.* FROM $wpdb->site WHERE id IN (%s)", join( ",", array_map( 'intval', $non_cached_ids ) ) ) );

		update_network_cache( $fresh_networks );
	}
}

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Related

Uses

Uses
Uses Description
wp-includes/ms-blogs.php: update_network_cache()

Updates the network cache of given networks.
wp-includes/wp-db.php: wpdb::get_results()

Retrieve an entire SQL result set from the database (i.e., many rows)
wp-includes/functions.php: _get_non_cached_ids()

Retrieve ids that are not already present in the cache.

Changelog

Changelog
Version Description
WP-4.6.0 Introduced.