public function appendValuesToList($key, $values)
{
$this->connectIfNeeded();
foreach ($values as $value) {
$this->redis->rPush($key, $value);
}
// usually we would simply do call_user_func_array(array($redis, 'rPush'), $values); as rpush supports multiple values
// at once but it seems to be not implemented yet see https://github.com/nicolasff/phpredis/issues/366
// doing it in one command should be much faster as it requires less tcp communication. Anyway, we currently do
// not write multiple values at once ... so it is ok!
}