Как вставить выбранные несколько значений флажков в разные строки в базе данных MySQL в Android и переполнения стека

Здесь я получаю доступ к контактам с телефона и показываю их в виде списка.
Теперь мне нужно вставить выбранные значения флажков в разные строки базы данных mysql. Здесь я могу вставить одно значение флажка в базу данных … если я выбрал более одного значения, данные будут сохранены в одной строке. Что изменения, которые я должен сделать, чтобы вставить отдельные данные в каждую строку ..? Я использую файл php для хранения данных в базе данных.

DisplayContact.java

public class DisplayContact extends Activity implements OnItemClickListener{

//ArrayList to store name and phone number
List<String> name1 = new ArrayList<String>();
List<String> phno1 = new ArrayList<String>();
MyAdapter ma ;
Button select;

private String vault;

public static final String kvault = "vault_no";
public static final String kname = "name";
public static final String kphone = "phone";

public static final String SHARED_PREF_NAME = "myloginapp";public static final String CONTACTNAME_SHARED_PREF = "name";
public static final String PHONE_SHARED_PREF = "phone";

//We will use this to store the boolean in sharedpreference to track user is loggedin or not
public static final String LOGGEDIN_SHARED_PREF = "loggedin";

public static final String UPLOAD_URL = "http://oursite.com/contacts.php";

Cursor phones;

private static final int MY_PERMISSIONS_REQUEST_READ_CONTACTS = 1;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getActionBar().setDisplayShowTitleEnabled(false);
setContentView(R.layout.display);

SharedPreferences sharedPreferences = getSharedPreferences(ProfileLogin.SHARED_PREF_NAME, MODE_PRIVATE);

vault = sharedPreferences.getString(ProfileLogin.EMAIL_SHARED_PREF,"Not Available");

getAllContacts(this.getContentResolver());
ListView lv= (ListView) findViewById(R.id.lv);
ma = new MyAdapter();
lv.setAdapter(ma);
lv.setOnItemClickListener(this);
lv.setItemsCanFocus(false);
lv.setTextFilterEnabled(true);
// adding
select = (Button) findViewById(R.id.button1);
select.setOnClickListener(new View.OnClickListener()
{

@Override
public void onClick(View v) {
StringBuilder checkedcontacts= new StringBuilder();
StringBuilder name2 = new StringBuilder();
StringBuilder phone2 = new StringBuilder();
for(int i = 0; i < name1.size(); i++)

{
if(ma.mCheckStates.get(i)==true)
{
checkedcontacts.append(name1.get(i).toString());
checkedcontacts.append(phno1.get(i).toString());
checkedcontacts.append("\n");

name2.append(name1.get(i).toString());
phone2.append(phno1.get(i).toString());
}
else
{

}
}
SharedPreferences sharedPreferences = DisplayContact.this.getSharedPreferences(SHARED_PREF_NAME, Context.MODE_PRIVATE);

//Creating editor to store values to shared preferences
SharedPreferences.Editor editor = sharedPreferences.edit();

//Adding values to editor
editor.putBoolean(LOGGEDIN_SHARED_PREF, true);
editor.putString(CONTACTNAME_SHARED_PREF, name2.toString());
editor.putString(PHONE_SHARED_PREF, phone2.toString());

//Saving values to editor
editor.commit();

Toast.makeText(DisplayContact.this, name2.toString() + " , " + phone2.toString() + " Added to Database", Toast.LENGTH_LONG).show();
uploadImage();
}
});

}

public void uploadImage(){

SharedPreferences sharedPreferences = getSharedPreferences(DisplayContact.SHARED_PREF_NAME, MODE_PRIVATE);

final String name = sharedPreferences.getString(DisplayContact.CONTACTNAME_SHARED_PREF, "Not Available");
final String phone = sharedPreferences.getString(DisplayContact.PHONE_SHARED_PREF, "Not Available");

final String vault_no = vault;

class UploadImage extends AsyncTask<Void,Void,String> {
ProgressDialog loading;
@Override
protected void onPreExecute() {
super.onPreExecute();
loading = ProgressDialog.show(DisplayContact.this,"Please wait...","uploading",false,false);
}

@Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
loading.dismiss();
if(s.equalsIgnoreCase("Successfully Saved")){
//Intent intent = new Intent(CollegeDetails.this,Work.class);
Toast.makeText(DisplayContact.this, s, Toast.LENGTH_SHORT).show();
// startActivity(intent);
}else{
Toast.makeText(DisplayContact.this,s,Toast.LENGTH_SHORT).show();

}
}

@Override
protected String doInBackground(Void... params) {
RequestHandler rh = new RequestHandler();
//RegisterUserClass rh = new RegisterUserClass();
HashMap<String,String> param = new HashMap<String,String>();

param.put(kvault,vault_no);
param.put(kname,name);
param.put(kphone,phone);

String result = rh.sendPostRequest(UPLOAD_URL, param);
return result;
}
}
UploadImage u = new UploadImage();
u.execute();
}

@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
// TODO Auto-generated method stub
ma.toggle(arg2);
}

public  void getAllContacts(ContentResolver cr) {

int result = ContextCompat.checkSelfPermission(DisplayContact.this, Manifest.permission.READ_CONTACTS);
if (result == PackageManager.PERMISSION_GRANTED){

phones = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,null,null, null);
contactsdisplay();

} else {

requestForLocationPermission();
}
}

private void requestForLocationPermission()
{

if (ActivityCompat.shouldShowRequestPermissionRationale(DisplayContact.this, Manifest.permission.READ_CONTACTS))
{
}
else {

ActivityCompat.requestPermissions(DisplayContact.this, new String[]{Manifest.permission.READ_CONTACTS}, MY_PERMISSIONS_REQUEST_READ_CONTACTS);
}
}

@Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults)
{
switch (requestCode) {
case MY_PERMISSIONS_REQUEST_READ_CONTACTS:
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED)
{
getAllContacts(DisplayContact.this.getContentResolver());
contactsdisplay();
}
break;
}
}

public  void contactsdisplay() {while (phones.moveToNext())
{
String name=phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
String phoneNumber = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
System.out.println(".................."+name+ "" +phoneNumber);
name1.add(name);
phno1.add(phoneNumber);
}

phones.close();
}

class MyAdapter extends BaseAdapter implements CompoundButton.OnCheckedChangeListener
{  private SparseBooleanArray mCheckStates;
LayoutInflater mInflater;
TextView tv1,tv;
CheckBox cb;
MyAdapter()
{
mCheckStates = new SparseBooleanArray(name1.size());
mInflater = (LayoutInflater)DisplayContact.this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return name1.size();
}

@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;
}

@Override
public long getItemId(int position) {
// TODO Auto-generated method stub

return 0;
}

@Override
public View getView(final int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
View vi=convertView;
if(convertView==null)
vi = mInflater.inflate(R.layout.row, null);
tv= (TextView) vi.findViewById(R.id.contact_name);
tv1= (TextView) vi.findViewById(R.id.phone_number);
cb = (CheckBox) vi.findViewById(R.id.checkBox_id);
tv.setText("Name :"+ name1.get(position));
tv1.setText("Phone No :"+ phno1.get(position));
cb.setTag(position);
cb.setChecked(mCheckStates.get(position, false));
cb.setOnCheckedChangeListener(this);

return vi;
}
public boolean isChecked(int position) {
return mCheckStates.get(position, false);
}

public void setChecked(int position, boolean isChecked) {
mCheckStates.put(position, isChecked);
}

public void toggle(int position) {
setChecked(position, !isChecked(position));
}
@Override
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
// TODO Auto-generated method stub

mCheckStates.put((Integer) buttonView.getTag(), isChecked);
}
}
}

contacts.php

<?php
session_start();
define('HOST','hostname');
define('USER','username');
define('PASS','password');
define('DB','dbname');

$response = array();

$con = mysqli_connect(HOST,USER,PASS,DB) or die('Unable to Connect');

if(!mysqli_connect_errno()){

$error_flag = false;

$contacts = json_decode($_POST['contacts'], true);
foreach($contacts as $contact){
//echo $contact['name'];// create a new user profile
$sql = "INSERT INTO contacts (vault_no , name, phone, update_at,created_at)
VALUES ('".$contact['vault_no']."', '".$contact['name']."',  '".$contact['phone']."', NOW(), NOW())";
if(mysqli_query($con,$sql)){

echo "Successfully Saved";

}else{
$response["error"] = true;
$response["error_msg"] = "INSERT operation failed";
echo json_encode($response);
}
}

}else{
$response["error"] = true;
$response["error_msg"] = "Database connection failed";
echo json_encode($response);
}

?>