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_get_non_cached_ids( int[] $object_ids, string $cache_key )

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.

Retrieve IDs that are not already present in the cache.

Parameters

$object_ids

(int[]) (Required) Array of IDs.

$cache_key

(string) (Required) The cache bucket to check against.

Return

(int[]) Array of IDs not present in the cache.

Source

File: wp-includes/functions.php 

function _get_non_cached_ids( $object_ids, $cache_key ) {
	$non_cached_ids = array();
	$cache_values   = wp_cache_get_multiple( $object_ids, $cache_key );

	foreach ( $cache_values as $id => $value ) {
		if ( ! $value ) {
			$non_cached_ids[] = (int) $id;
		}
	}

	return $non_cached_ids;
}

Uses

Uses Description
wp-includes/cache.php: wp_cache_get_multiple()

Retrieves multiple values from the cache in one call.

Used By

Used By Description
wp-includes/taxonomy.php: _prime_term_caches()

Adds any terms from the given IDs to the cache that do not already exist in cache.
wp-includes/ms-network.php: _prime_network_caches()

Adds any networks from the given IDs to the cache that do not already exist in cache.
wp-includes/ms-site.php: _prime_site_caches()

Adds any sites from the given IDs to the cache that do not already exist in cache.
wp-includes/comment.php: _prime_comment_caches()

Adds any comments from the given IDs to the cache that do not already exist in cache.
wp-includes/pluggable.php: cache_users()

Retrieve info for user lists to prevent multiple queries by get_userdata()
wp-includes/post.php: _prime_post_caches()

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

Changelog

Version Description
3.4.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/_get_non_cached_ids