webmozart / key-value-store

        $results = array();

        $resolved = array();

        foreach ($data as $row) {

            $results[$row['meta_key']] = Serializer::unserialize($row['meta_value']);

            $resolved[$row['meta_key']] = $row['meta_key'];

        }

        $notResolvedArr = array_diff($keys, $resolved);

        foreach ($notResolvedArr as $notResolved) {

        $results = array();

        $resolved = array();

        foreach ($data as $row) {

            $results[$row['meta_key']] = Serializer::unserialize($row['meta_value']);

            $resolved[] = $row['meta_key'];

        }

        $notResolvedArr = array_diff($keys, $resolved);