SlightPHP\SMTP::get_lines PHP Method

    private function get_lines()
    {
        $data = "";
        while ($str = @fgets($this->smtp_conn, 515)) {
            if ($this->do_debug >= 4) {
                echo "SMTP -> get_lines(): \$data was \"{$data}\"" . $this->CRLF;
                echo "SMTP -> get_lines(): \$str is \"{$str}\"" . $this->CRLF;
            }
            $data .= $str;
            if ($this->do_debug >= 4) {
                echo "SMTP -> get_lines(): \$data is \"{$data}\"" . $this->CRLF;
            }
            // if the 4th character is a space then we are done reading
            // so just break the loop
            if (substr($str, 3, 1) == " ") {
                break;
            }
        }
        return $data;
    }