* Object Cache API functions missing from 3rd party object caches.
* @link https://codex.wordpress.org/Class_Reference/WP_Object_Cache
if ( ! function_exists( 'wp_cache_get_multiple' ) ) :
* Retrieves multiple values from the cache in one call.
* Compat function to mimic wp_cache_get_multiple().
* @see wp_cache_get_multiple()
* @param array $keys Array of keys under which the cache contents are stored.
* @param string $group Optional. Where the cache contents are grouped. Default empty.
* @param bool $force Optional. Whether to force an update of the local cache
* from the persistent cache. Default false.
* @return array Array of values organized into groups.
function wp_cache_get_multiple( $keys, $group = '', $force = false ) {
foreach ( $keys as $key ) {
$values[ $key ] = wp_cache_get( $key, $group, $force );