Sastrawi\Stemmer\Stemmer::stem PHP Метод

    public function stem($text)
    {
        $normalizedText = Filter\TextNormalizer::normalizeText($text);
        $words = explode(' ', $normalizedText);
        $stems = array();
        foreach ($words as $word) {
            $stems[] = $this->stemWord($word);
        }
        return implode(' ', $stems);
    }