Jarves\Translation\Utils::toPoString PHP Method

    public static function toPoString($string)
    {
        $string = addcslashes($string, '"');
        $string = str_replace("\n", '\\n"' . "\n" . '"', $string);
        $res = preg_replace('/([^\\\\])"/', '$1\\"', $string);
        return '"' . $res . '"';
    }