public function load_many_for_cache(array $keys) {
        $results = [];

        foreach ($keys as $key) {
            $results[] = $this->load_for_cache($key);
        }

        return $results;
    }
public function load_many_for_cache(array $keys) {
        $results = [];

        foreach ($keys as $key) {
            $results[] = $this->load_for_cache($key);
        }

        return $results;
    }
public function load_many_for_cache ( array $ keys ) { $ results = [ ] ; foreach ( $ keys as $ key ) { $ results [ ] = $ this -> load_for_cache ( $ key ) ; } return $ results ; }
Loads several keys for the cache.

@param array $keys An array of keys each of which will be string|int.
@return array An array of matching data items.
Loads several keys for the cache .