สอบถาม [Android] insert image and values to server(mysql database)

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.register);
        name = (EditText) findViewById(R.id.register_name);
        username = (EditText) findViewById(R.id.register_username);
        password = (EditText) findViewById(R.id.register_password);
        address = (EditText) findViewById(R.id.register_address);
        email = (EditText) findViewById(R.id.register_email);
        lineid = (EditText) findViewById(R.id.register_line);
        website = (EditText) findViewById(R.id.register_website);
        phone = (EditText) findViewById(R.id.register_phone);

        btnChoose = (Button)findViewById(R.id.buttonChoose);


    }

    public void register_register(View v){

        Name = name.getText().toString();
        Username = username.getText().toString();
        Password = password.getText().toString();
        Address = address.getText().toString();
        Email = email.getText().toString();
        Lineid = lineid.getText().toString();
        Website = website.getText().toString();
        Phone = phone.getText().toString();
        BackGround b = new BackGround();
        b.execute(Name, Username, Password, Address, Email, Lineid, Website, Phone);
    }

    class BackGround extends AsyncTask<String, String, String> {

        @Override
        protected String doInBackground(String... params) {
            String name = params[0];
            String username = params[1];
            String password = params[2];
            String address_company = params[3];
            String email = params[4];
            String line_id = params[5];
            String website = params[6];
            String phone = params[7];
            String data="";
            int tmp;

            try {
                URL url = new URL("http://10.0.2.2/esapp_demo/register2.php");
                String urlParams = "name="+name+"&username="+username+"&password="+password+"&address_company="+address_company+"&email="+email+"&line_id="+line_id+"&website="+website+"&phone="+phone;

                HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
                httpURLConnection.setDoOutput(true);
                OutputStream os = httpURLConnection.getOutputStream();
                os.write(urlParams.getBytes());
                os.flush();
                os.close();
                InputStream is = httpURLConnection.getInputStream();
                while((tmp=is.read())!=-1){
                    data+= (char)tmp;
                }
                is.close();
                httpURLConnection.disconnect();

                return data;

            } catch (MalformedURLException e) {
                e.printStackTrace();
                return "Exception: "+e.getMessage();
            } catch (IOException e) {
                e.printStackTrace();
                return "Exception: "+e.getMessage();
            }
        }

        @Override
        protected void onPostExecute(String s) {
            if(s.equals("")){
                s="Data saved successfully.";
            }
            Toast.makeText(ctx, s, Toast.LENGTH_LONG).show();
        }

<?php
error_reporting(0);
require "database.php";
 
$name = $_POST["name"];
$username = $_POST["username"];
$password = $_POST["password"];
$address_company = $_POST["address_company"];
$email = $_POST["email"];
$line_id = $_POST["line_id"];
$website = $_POST["website"];
$phone = $_POST["phone"];
 

$sql = "INSERT INTO `users_info` (`id`,`name`,`username`, `password`, `address_company`, `email`, `line_id`, `website`,`phone`) VALUES (NULL, '".$name."', '".$username."', '".$password."', '".$address_company."', '".$email."', '".$line_id."', '".$website."', '".$phone."');";

if(!mysqli_query($con, $sql)){
    echo '{"message":"Unable to save the data to the database."}';
}
 
?>