NFePHP\NFe\ConvertNFe::clearFieldString PHP Метод

clearFieldString() приватный Метод

Clear the string of unwanted characters Will remove all duplicated spaces and if wanted replace all accented characters by their originals and all the special ones
private clearFieldString ( string &$field )
$field string string to be cleaned
    private function clearFieldString(&$field)
    {
        $field = trim(preg_replace('/\\s+/', ' ', $field));
        if ($this->limparString) {
            $field = Strings::cleanString($field);
        }
    }