Retrieves IDs that are not already present in the cache.

$object_ids int[] Required

Array of IDs.

$cache_key string Required

The cache bucket to check against.

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

File: wp-includes/functions.php. View all references

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;
}