SlightPHP\SMTP::Authenticate PHP Method

    public function Authenticate($username, $password)
    {
        // Start authentication
        fputs($this->smtp_conn, "AUTH LOGIN" . $this->CRLF);
        $rply = $this->get_lines();
        $code = substr($rply, 0, 3);
        if ($code != 334) {
            $this->error = array("error" => "AUTH not accepted from server", "smtp_code" => $code, "smtp_msg" => substr($rply, 4));
            if ($this->do_debug >= 1) {
                echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF;
            }
            return false;
        }
        // Send encoded username
        fputs($this->smtp_conn, base64_encode($username) . $this->CRLF);
        $rply = $this->get_lines();
        $code = substr($rply, 0, 3);
        if ($code != 334) {
            $this->error = array("error" => "Username not accepted from server", "smtp_code" => $code, "smtp_msg" => substr($rply, 4));
            if ($this->do_debug >= 1) {
                echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF;
            }
            return false;
        }
        // Send encoded password
        fputs($this->smtp_conn, base64_encode($password) . $this->CRLF);
        $rply = $this->get_lines();
        $code = substr($rply, 0, 3);
        if ($code != 235) {
            $this->error = array("error" => "Password not accepted from server", "smtp_code" => $code, "smtp_msg" => substr($rply, 4));
            if ($this->do_debug >= 1) {
                echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF;
            }
            return false;
        }
        return true;
    }