Craft\SeomaticService::_cleanupText PHP Method

    private function _cleanupText($text = null)
    {
        /* -- convert to UTF-8 */
        if (function_exists('iconv')) {
            $text = iconv(mb_detect_encoding($text, mb_detect_order(), true), "UTF-8//IGNORE", $text);
        } else {
            ini_set('mbstring.substitute_character', "none");
            $text = mb_convert_encoding($text, 'UTF-8', 'UTF-8');
        }
        /* -- strip HTML tags */
        $text = preg_replace('#<[^>]+>#', ' ', $text);
        /* -- remove excess whitespace */
        $text = preg_replace('/\\s{2,}/', ' ', $text);
        $text = html_entity_decode($text);
        return $text;
    }