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_site_cache() instead.

_prime_site_caches( array $ids )

Adds any sites from the given ids to the cache that do not already exist in cache.

Description

Parameters

$ids: (Required) ID list.

Source

File: wp-includes/ms-blogs.php

function _prime_site_caches( $ids ) {
	global $wpdb;

	$non_cached_ids = _get_non_cached_ids( $ids, 'sites' );
	if ( ! empty( $non_cached_ids ) ) {
		$fresh_sites = $wpdb->get_results( sprintf( "SELECT * FROM $wpdb->blogs WHERE blog_id IN (%s)", join( ",", array_map( 'intval', $non_cached_ids ) ) ) );

		update_site_cache( $fresh_sites );
	}
}

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Uses

Uses
Uses	Description
wp-includes/ms-blogs.php: update_site_cache()	Updates sites in cache.
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.

Used By

Used By
Used By	Description
wp-includes/class-wp-site-query.php: WP_Site_Query::get_sites()	Retrieves a list of sites matching the query vars.

Changelog

Changelog
Version	Description
WP-4.6.0	Introduced.