SimilarText\Finder::levenshteinUtf8 PHP Method

    protected function levenshteinUtf8($string1, $string2)
    {
        $charMap = array();
        $string1 = $this->utf8ToExtendedAscii($string1, $charMap);
        $string2 = $this->utf8ToExtendedAscii($string2, $charMap);
        return levenshtein($string1, $string2);
    }