MYSQL post not appearing - php

Question

I dont think I have anything deprecated in my code, when I run the PHP script I get the success, but nothing appears in the database.
Heres the PHP Code.
<?php include "../inc/dbinfo.inc"; ?>
<?php
$connect = new mysqli("DB_SERVER","DB_USERNAME","DB_PASSWORD","DB_DATABASE");
if(!$connect){
die('error');
}
else
{
echo "success";
}
$username = isset($_POST['username']) ? $_POST['username'] : '';
$password = isset($_POST['password']) ? $_POST['password'] : '';
$givenname = isset($_POST['givenname']) ? $_POST['givenname'] : '';
$email = isset($_POST['email']) ? $_POST['email'] : '';
$phonenumber = isset($_POST['phonenumber']) ? $_POST['phonenumber'] : '';
$sql = "INSERT INTO test(username,password,givenname,email,phonenumber) VALUES ('$username', '$password', '$givenname', '$email', '$phonenumber')";
mysqli_close($connect);
?>
Heres the Android Code.
private void insertToDatabase(){
class SendPostReqAsyncTask extends AsyncTask<String, Void,String >
#Override
protected String doInBackground(String... params) {
String paramUsername = params[0];
String paramPassword = params[1];
String paramGivenname = params[2];
String paramEmail = params[3];
String paramPhonenumber = params[4];
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("username", username.getText().toString()));
nameValuePairs.add(new BasicNameValuePair("password", password.getText().toString()));
nameValuePairs.add(new BasicNameValuePair("givenname", givenName.getText().toString()));
nameValuePairs.add(new BasicNameValuePair("email", email.getText().toString()));
nameValuePairs.add(new BasicNameValuePair("phonenumber", phone.getText().toString()));
try {
HttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(Constantss.DB_DNS);
httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = httpClient.execute(httpPost);
HttpEntity entity = response.getEntity();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return "success";
}
#Override
protected void onPostExecute(String result){
super.onPostExecute(result);
Toast.makeText(getApplicationContext(),result,Toast.LENGTH_LONG).show();
}
}
SendPostReqAsyncTask sendPostReqAsyncTask = new SendPostReqAsyncTask();
// sendPostReqAsyncTask.execute(uname,pword, gname, lmail,pnumb);
}
I get the success from the Android Code to, but nothing appears in the database table.
Does anyone know the problem? Thanks!

Answer 1

You didn't execute the query.
So use:
mysqli_query($connect, $sql); and check for errors on it also.
References:
http://php.net/manual/en/mysqli.query.php
http://php.net/manual/en/mysqli.error.php
Since another answer was given and I have pointed that out in comments first, just so we set the record straight.
You're also open to an sql injection. Use a prepared statement:
https://en.wikipedia.org/wiki/Prepared_statement

Answer 2

You don't execute the query in your code. Also I would strongly suggest to sanitize the user input.
This asks for SQL injection. Consult: How can I prevent SQL injection in PHP?
Run the query:
$res = mysqli_query($connect, $sql);