FluidXml\FluidContext::filterQueryResults PHP Method

    protected function filterQueryResults(&$results)
    {
        $set = [];
        foreach ($results as $r) {
            $found = false;
            foreach ($set as $u) {
                $found = $r === $u || $found;
            }
            if (!$found) {
                $set[] = $r;
            }
        }
        return $set;
    }