How to post Integer in Alamofire Parameters - swift

Question

i followed a tutorial for Register and Login Request in xcode.
But i have a problem with the Code because i changed some values of it.
My variables in the php script are ssiss (string, string, int, string, string). In the swift file i am using Alamofire. Here it is:
#IBAction func buttonRegister(_ sender: UIButton) {
let ageINT = Int(ageTF.text!);
//creating parameters for the post request
let parameters: Parameters=[
"name":nameTF.text!,
"username":usernameTF.text!,
"age": ageINT ?? 0,
"country":countryTF.text!,
"password":passwordTF.text!,
]
//Sending http post request
Alamofire.request(URL_USER_REGISTER, method: .post, parameters: parameters, encoding: JSONEncoding.default, headers: nil).responseJSON
{
response in
//printing response
print(response)
//getting the json value from the server
if let result = response.result.value {
//converting it as NSDictionary
let jsonData = result as! NSDictionary
//displaying the message in label
self.labelMessage.text = jsonData.value(forKey: "message") as! String?
}
}
I think the problem is i pass an String value instead of a integer value. That is why i already have changed the value for "age" from "age":ageTF.text!, to "age": ageINT ?? 0,
The error i am get is "Required parameters are missing".
I am getting this "error-response" message because of this php-script:
<?php
//importing required script
require_once '../includes/DbOperation.php';
$response = array();
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
if (!verifyRequiredParams(array('name', 'username', 'age', 'country', 'password'))) {
//getting values
$name = $_POST["name"];
$username = $_POST["username"];
$age = $_POST["age"];
$country = $_POST["country"];
$password = $_POST["password"];
//creating db operation object
$db = new DbOperation();
//adding user to database
$result = $db->createUser($name, $username, $age, $country, $password);
//making the response accordingly
if ($result == USER_CREATED) {
$response['error'] = false;
$response['message'] = 'User created successfully';
} elseif ($result == USER_ALREADY_EXIST) {
$response['error'] = true;
$response['message'] = 'User already exist';
} elseif ($result == USER_NOT_CREATED) {
$response['error'] = true;
$response['message'] = 'Some error occurred';
}
} else {
$response['error'] = true;
$response['message'] = 'Required parameters are missing';
}
} else {
$response['error'] = true;
$response['message'] = 'Invalid request';
}
//function to validate the required parameter in request
function verifyRequiredParams($required_fields)
{
//Getting the request parameters
$request_params = $_REQUEST;
//Looping through all the parameters
foreach ($required_fields as $field) {
//if any requred parameter is missing
if (!isset($request_params[$field]) || strlen(trim($request_params[$field])) <= 0) {
//returning true;
return true;
}
}
return false;
}
print_r(json_encode($response));
?>
And this is the other php script:
<?php
class DbOperation
{
private $conn;
//Constructor
function __construct()
{
require_once dirname(__FILE__) . '/Constants.php';
require_once dirname(__FILE__) . '/DbConnect.php';
// opening db connection
$db = new DbConnect();
$this->conn = $db->connect();
}
//Function to create a new user
public function createUser($name, $username, $age, $country, $password)
{
if (!$this->isUserExist($username)) {
$password = md5($pass);
$stmt = $this->conn->prepare("INSERT INTO user (name, username, age, country, password) VALUES (?, ?, ?, ?, ?)");
$stmt->bind_param("ssiss", $name, $username, $age, $country, $password);
if ($stmt->execute()) {
return USER_CREATED;
} else {
return USER_NOT_CREATED;
}
} else {
return USER_ALREADY_EXIST;
}
}
private function isUserExist($username)
{
$stmt = $this->conn->prepare("SELECT id FROM user WHERE username = ? ");
$stmt->bind_param("s", $username);
$stmt->execute();
$stmt->store_result();
return $stmt->num_rows > 0;
}
}