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Unexpected response code 404 volley java android

When I try to add new user in registration form I have an error and nothing to add in users_table. Also this error when I try to login.
I use xampp for phpmyadmin, running MySQL, Apache and PHP. I tried to realize registration and login with database and have error 404. Please help fix this.
public class registration extends AppCompatActivity {
private TextView loginReg;
private EditText email, username, password;
private Button signUp;
private static String URL_REGIST = "http://XXX.XX.XX.X/android_register_login/register.php";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_registration);
loginReg = (TextView) findViewById(R.id.loginReg);
email = findViewById(R.id.emailReg);
username = findViewById(R.id.usernameReg);
password = findViewById(R.id.passwordReg);
signUp = findViewById(R.id.signUp);
loginReg.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
openLogin();
}
});
signUp.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Register();
}
});
}
public void openLogin(){
Intent intent = new Intent(this, com.example.myfirstjavaapp.MainActivity.class);
startActivity(intent);
}
private void Register(){
final String email = this.email.getText().toString().trim();
final String username = this.username.getText().toString().trim();
final String password = this.password.getText().toString().trim();
StringRequest stringRequest = new StringRequest(Request.Method.POST, URL_REGIST,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try{
JSONObject jsonObject = new JSONObject(response);
String success = jsonObject.getString("success");
if(success.equals("1")){
Toast.makeText(registration.this,"Register success!", Toast.LENGTH_LONG).show();
}
}catch (JSONException e){
e.printStackTrace();
Toast.makeText(registration.this,"Register error!"+ e.toString(), Toast.LENGTH_LONG).show();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(registration.this,"Register error!"+ error.toString(), Toast.LENGTH_LONG).show();
}
})
{
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> params = new HashMap<>();
params.put("username", username);
params.put("email", email);
params.put("password", password);
return params;
}
};
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(stringRequest);
}
}
This is PHP code.
<?php
if ($_SERVER['REQUEST_METHOD'] =='POST'){
$username = filter_input(INPUT_POST, 'username');
$email = filter_input(INPUT_POST, 'email');
$password = filter_input(INPUT_POST, 'password');
$password = password_hash($password, PASSWORD_DEFAULT);
require_once 'connect.php';
$sql = "INSERT INTO users_table (username, email, password) VALUES ('$username', '$email', '$password')";
if ( mysqli_query($conn, $sql) ) {
$result["success"] = "1";
$result["message"] = "success";
echo json_encode($result);
mysqli_close($conn);
} else {
$result["success"] = "0";
$result["message"] = "error";
echo json_encode($result);
mysqli_close($conn);
}
}
?>
E/Volley: [696] BasicNetwork.performRequest: Unexpected response code 404 for http://XXX.XX.XX.X/android_register_login/register.php

Not logging in? No value for login error?

the api login.php is correct but some problem in java code in android studio but not understanding the problem?need help in code?
I have tried my method but it dosen't solve my problem.
this is my login.php code.
header("Access-Control-Allow-Origin: *");
header("Access-Control-Allow-Methods: POST");
header("Content-Type: application/json; charset=UTF-8");
require_once 'uconnection.php';
$data = json_decode(file_get_contents("php://input"));
if (!$data) {
$result['success'] = "0";
$result['message'] = "Login payload missing. Send email and password in the request header.";
echo json_encode($result);
mysqli_close($conn);
} else {
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
$email = $data->email;
$password = $data->password;
if ($email != null && $password != null) {
$sql = "SELECT * FROM user WHERE email='" . $email . "' AND password='" . $password . "' ";
$response = mysqli_query($conn, $sql);
// var_dump($response);
// echo $response->num_rows;
// echo "--";
// echo mysqli_num_rows($response);
// echo "--";
$result = array();
$result['login'] = array();
// echo "OUTSIDE";
if (mysqli_num_rows($response) > 0) {
// echo "Found";
$row = mysqli_fetch_assoc($response);
print_r($row);
// echo $row["password"];
if ($email == $row["email"] && $password == $row["password"]) {
// echo "VERIFIED";
$index['firstname'] = $row['firstname'];
$index['email'] = $row['email'];
$index['id'] = $row['id'];
array_push($result['login'], $index);
$result['success'] = "1";
$result['message'] = "success";
echo json_encode($result);
mysqli_close($conn);
} else {
$result['success'] = "0";
$result['message'] = "error";
echo json_encode($result);
mysqli_close($conn);
}
} else {
$result['success'] = "0";
$result['message'] = "Incorrect username and/or password";
echo json_encode($result);
mysqli_close($conn);
}
} else {
if ($email == null) {
$result['success'] = "0";
$result['message'] = "email missing";
echo json_encode($result);
mysqli_close($conn);
}
if ($password == null) {
$result['success'] = "0";
$result['message'] = "password missing";
echo json_encode($result);
mysqli_close($conn);
}
}
} else {
$result['success'] = "0";
$result['message'] = "only POST request possbile";
echo json_encode($result);
mysqli_close($conn);
}
}
And this is android java login class code.
private EditText emailid,password;
private Button buttonlogin,buttonregister1;
private ProgressDialog pDialog;
String emailid_login, password_login;
private static String URL_LOGIN = "http://192.168.68.74:80/loginregistervollyphp/login.php";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
emailid = findViewById(R.id.etxt_email);
password = findViewById(R.id.etxt_password);
buttonlogin = findViewById(R.id.btn_login);
buttonregister1 = findViewById(R.id.btn_register);
buttonregister1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent i1 = new Intent(LoginActivity.this, MainActivity.class);
startActivity(i1);
finish();
}
});
buttonlogin.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
emailid_login = emailid.getText().toString().trim();
password_login = password.getText().toString().trim();
if (!emailid_login.isEmpty() && !password_login.isEmpty()){
login(emailid_login,password_login);
}
else {
emailid.setError("Please insert Email id");
password.setError("Please insert Password");
}
}
});
}
private void displayLoader() {
pDialog = new ProgressDialog(LoginActivity.this);
pDialog.setMessage("Loging In... Please wait...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(false);
pDialog.show();
}
private void login(final String email, final String password){
displayLoader();
StringRequest stringRequest = new StringRequest(Request.Method.POST,URL_LOGIN,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
pDialog.dismiss();
try {
JSONObject jsonObject = new JSONObject(response);
String success = jsonObject.getString("success");
JSONArray jsonArray = jsonObject.getJSONArray("login");
Log.d("LOGINSUCCESS", String.valueOf(jsonObject));
if (!success.equals("0")){
String email2 = jsonObject.getString("email").trim();
String fname = jsonObject.getString("firstname").trim();
Intent intent = new Intent(LoginActivity.this,UserDashboard.class);
intent.putExtra("email",email2);
intent.putExtra("firstname",fname);
startActivity(intent);
}else if (success.equals("0")){
Toast.makeText(LoginActivity.this, "Error! Logging In", Toast.LENGTH_SHORT).show();
}
} catch (JSONException e) {
e.printStackTrace();
Toast.makeText(LoginActivity.this, "Error Loging in: "+e.toString(), Toast.LENGTH_SHORT).show();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
pDialog.dismiss();
Toast.makeText(LoginActivity.this, "Error Loging in: "
+error.toString(), Toast.LENGTH_SHORT).show();
}
})
{
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> params = new HashMap<>();
params.put("email",email);
params.put("password",password);
return params;
}
};
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(stringRequest);
}

Send value from Android Studio to mySQL database with PHP

I'm running an app quiz with 2 table like this https://gyazo.com/641f6e45006ab4f6d962a81d60e1ba69 , https://gyazo.com/be10c2f550f63b4ebc55eda61c3f0f15.
My register -login activity works fine but the issue is when I try to send the score value to database. No errors and no message that's running. Can you help me please?
public class Results extends AppCompatActivity implements OnClickListener {
private Button bt_save;
private TextView tv_label;
int totalscore ;
private ProgressDialog progressDialog;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_results);
tv_label = (TextView) findViewById(R.id.tv_label);
Button bt_Begin = (Button) findViewById(R.id.bt_Begin);
bt_save = (Button)findViewById(R.id.bt_save);
bt_save.setOnClickListener(this);
SharedPreferences sharedPreferences = getSharedPreferences("sharedPref",Context.MODE_PRIVATE);
Integer result = sharedPreferences.getInt("rightAnswerCount", 0);
SharedPreferences sharedPreferencess = getSharedPreferences("sharedPref",Context.MODE_PRIVATE);
Integer results = sharedPreferencess.getInt("rightAnswerCountt",0);
totalscore=(result+results);
tv_label.setText("" +totalscore);
}
private void saveRequest() {
final String score = tv_label.getText().toString().trim();
final ProgressDialog progressDialog = new ProgressDialog(this);
progressDialog.setMessage("Registrating user...");
progressDialog.show();
StringRequest stringRequest = new StringRequest(Request.Method.POST,
Constants.RESULT_URL,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
progressDialog.dismiss();
try {
JSONObject jsonObject = new JSONObject(response);
Toast.makeText(getApplicationContext(), jsonObject.getString("message"), Toast.LENGTH_LONG).show();
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
progressDialog.hide();
Toast.makeText(getApplicationContext(), error.getMessage(), Toast.LENGTH_LONG).show();
}
}) {
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> key = new HashMap<>();
key.put("totalscore", score+"");
return key;
}
};
RequestHandler.getInstance(this).addToRequestQueue(stringRequest);
}
#Override
public void onClick(View view) {
if (view == bt_save)
saveRequest();
}
this is my php file dbOp1
<?php
class dbOperation1{
private $con;
function __construct(){
require_once dirname(__FILE__).'/connect.php';
$db = new connect();
$this->con = $db->connect();
}
public function saveScore($score){
$stmt = $this->con->prepare("INSERT INTO `test_score`(`id`,`score`) VALUES(NULL, ?);");
$stmt->bind_param("i",$score);
if($stmt->execute()){
return 1;
}else{
return 2;
}
}
}
?>
And this is my Result php:
<?php
error_reporting(0);
require_once 'dbOp1.php';
$response = array();
if($_SERVER['REQUEST_METHOD']=='POST'){
if(
isset($_POST['score']))
{
$db = new dbOperation1();
$result = $db->saveRequest(
$_POST['score']
);
if($result == 1){
$response['error'] = false;
$response['message'] = "User registered sussessfully";
}elseif($result == 2){
$respone['error'] = true;
$response['message'] = "Some error";
}
}
}
echo json_encode($response);

My php script is connected, but android studio won't use it. No visible error outputs

I have a php script for handling very basic registration. its in a folder in my localhost; http://(ipaddress/localhost):3306/testing/Register.php. Android studio points to this URL but i get no error output when i run the emulator. When i open the PHP script in the browser, everything looks good.
Here is the registerrequest java script:
public class RegisterRequest extends StringRequest {
private static final String REGISTER_REQUEST_URL = "http://(ipaddress/localhost):3306/testing/Register.php";
private Map<String, String> params;
public RegisterRequest(String username, String password,String isAdmin, Response.Listener<String> listener){
super(Method.POST, REGISTER_REQUEST_URL,listener,null);
params = new HashMap<>();
params.put("username",username);
params.put("password",password);
params.put("isAdmin",isAdmin+"");
}
public Map<String, String> getparams() {
return params;
}
}
here is my createuser script
public class CreateUser extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_create_user);
this.setTitle("Create User");
final EditText username1 = findViewById(R.id.Createusername);
final EditText password1 = findViewById(R.id.CreatePassword);
final Switch isAdmin = findViewById(R.id.isadmin);
final Button createuser = findViewById(R.id.createuserbtn);
if (getIntent().hasExtra("com.example.northlandcaps.crisis_response")){
isAdmin.setVisibility(View.GONE);
}
createuser.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
final String username = username1.getText().toString();
final String password = password1.getText().toString();
final String isadmin = isAdmin.getText().toString();
Response.Listener<String> responseListener = new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
JSONObject jsonResponse = new JSONObject(response);
boolean success = jsonResponse.getBoolean("success");
if (success){
Intent intent = new Intent(CreateUser.this, MainActivity.class);
startActivity(intent);
}else{
AlertDialog.Builder builder = new AlertDialog.Builder(CreateUser.this);
builder.setMessage("Register Failed")
.setNegativeButton("Retry",null)
.create()
.show();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
};
RegisterRequest registerRequest = new RegisterRequest(username,password,isadmin,responseListener);
RequestQueue queue = Volley.newRequestQueue(CreateUser.this);
queue.add(registerRequest);
}
});
}
finally, here is my PHP script, Register; m
$db_host = 'localhost:3306';
$db_user = 'root';
$db_pass = '';
$db_name = 'test';
$con = mysqli_connect($db_host,'user',$db_pass,$db_name);
if($con){
echo "connection successful";
}else{
echo "connection failed";
}
$age = $_POST["isAdmin"];
$username = $_POST["username"];
$password = $_POST["password"];
$statement = mysqli_prepare($con, "INSERT INTO cresidentials (username,password,isAdmin) VALUES (?, ?, ?)");
if(!$statement) { printf("Prepare failed: %s\n", mysqli_error($con)); }
if(!$statement) { return json_encode(['status'=>'failed','message'=>mysqli_error($con)]); }
mysqli_stmt_bind_param($statement, "ssi",$username,$password,$isAdmin);
mysqli_stmt_execute($statement);
if(mysqli_error($statement)) { return json_encode(['status'=>'failed','message'=>mysqli_error($con)]); }
$response = array();
$response["success"] = true;
echo json_encode($response);
?>
Im using xampp (apache and mysql turned on) and my Register is in a folder in Htdocs.
Thank you in advance for any help!

You could modify constructor of RegisterRequest:
public RegisterRequest(String username, String password,String isAdmin,
Response.Listener<String> listener,
Response.ErrorListener() errListener){ //add error listener
super(Method.POST, REGISTER_REQUEST_URL,listener,errListener);
......
}
And in CreateUser class file, add below:
Response.ErrorListener errorListener = new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(context, String.valueOf(error), Toast.LENGTH_SHORT).show();
}
}
Then:
RegisterRequest registerRequest = new RegisterRequest(username,password,isadmin,
responseListener,errorListener);
Now, run again and when error occured, you could see it in error listener.

Android PHP MySQL with Volley, can't register user, getting blank Toast

I'm creating registration form on my localhost, form works as it should, I can register user when using Postman, but when I try to register user from my Android app I only get blank Toast message and user is not registered.
Here's my code:
MainActivity.java
public class MainActivity extends AppCompatActivity implements View.OnClickListener{
private EditText editTextUsername, editTextEmail, editTextPassword;
private Button buttonRegister;
private ProgressDialog progressDialog;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
editTextUsername = (EditText) findViewById(R.id.editTextUsername);
editTextEmail = (EditText) findViewById(R.id.editTextEmail);
editTextPassword = (EditText) findViewById(R.id.editTextPassword);
buttonRegister = (Button) findViewById(R.id.buttonRegister);
progressDialog = new ProgressDialog(this);
buttonRegister.setOnClickListener(this);
}
#Override
public void onClick(View view) {
if (view == buttonRegister){
registerUser();
}
}
private void registerUser() {
final String email = editTextEmail.getText().toString().trim();
final String username = editTextUsername.getText().toString().trim();
final String password = editTextPassword.getText().toString().trim();
progressDialog.setMessage("Registering user...");
progressDialog.show();
StringRequest stringRequest = new StringRequest(Request.Method.POST,
Constants.URL_REGISTER,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
progressDialog.dismiss();
try {
JSONObject jsonObject = new JSONObject(response);
Toast.makeText(getApplicationContext(), jsonObject.getString("message"), Toast.LENGTH_LONG).show();
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
progressDialog.hide();
Toast.makeText(getApplicationContext(), error.getMessage(), Toast.LENGTH_LONG).show();
}
}) {
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> params = new HashMap<>();
params.put("username", username);
params.put("email", email);
params.put("password", password);
return params;
}
};
RequestHandler.getInstance(this).addToRequestQueue(stringRequest);
}
Constants.java
public class Constants {
private static final String ROOT_URL = "http://192.168.56.2/Android/v1/";
public static final String URL_REGISTER = ROOT_URL+"registerUser.php";
}
RequestHandler.java
public class RequestHandler {
private static RequestHandler mInstance;
private RequestQueue mRequestQueue;
private static Context mCtx;
private RequestHandler(Context context) {
mCtx = context;
mRequestQueue = getRequestQueue();
}
public static synchronized RequestHandler getInstance(Context context) {
if (mInstance == null) {
mInstance = new RequestHandler(context);
}
return mInstance;
}
public RequestQueue getRequestQueue() {
if (mRequestQueue == null) {
// getApplicationContext() is key, it keeps you from leaking the
// Activity or BroadcastReceiver if someone passes one in.
mRequestQueue = Volley.newRequestQueue(mCtx.getApplicationContext());
}
return mRequestQueue;
}
public <T> void addToRequestQueue(Request<T> req) {
getRequestQueue().add(req);
}
}
What am I doing wrong?

First of all give Internet permission to your project.
Then use a php script like this one adapted to your needs:
<?php
$connect = mysqli_connect("mysql.hostinger.gr", "u305474665_xxxxx", "xxxxxxxx", "u305474665_xxxxx");
$name = isset($_POST["name"]) ? $_POST["name"] : '';
$username = isset($_POST["username"]) ? $_POST["username"] : '';
$age = isset($_POST["age"]) ? $_POST["age"] : '';
$password = isset($_POST["password"]) ? $_POST["password"] : '';
function registerUser() {
global $connect, $name, $age, $username, $password;
$statement = mysqli_prepare($connect, "INSERT INTO User (name,username,age, password) VALUES (?, ?, ?, ?)");
mysqli_stmt_bind_param($statement, "ssis", $name, $username, $age, $password);
mysqli_stmt_execute($statement);
mysqli_stmt_close($statement);
};
function usernameAvailable() {
global $connect, $username;
$statement = mysqli_prepare($connect, "SELECT * FROM User WHERE username = ?");
mysqli_stmt_bind_param($statement, "s", $username);
mysqli_stmt_execute($statement);
mysqli_stmt_store_result($statement);
$count = mysqli_stmt_num_rows($statement);
mysqli_stmt_close($statement);
if ($count < 1){
return true;
}
else {
return false;
}
};
$response = array();
$response["success"] = false;
if (usernameAvailable()){
registerUser();
$response["success"] = true;
}
print_r(json_encode($response));
?>
Last but very important: Define a retry policy Recursively on your error Listener.