<?php

$username = $_POST["username"];
$email = $_POST["email"];
$password = $_POST["password"];

define('hostname','');
define('user','');
define('password','');
define('databaseName','');



$response=array();
$response["success"]=false;

$conn = mysqli_connect(hostname,user,password,databaseName);
$affected=mysqli_affected_rows($conn);

$check=mysqli_query($conn,"SELECT * FROM users WHERE username='$username'");
if($affected>0){
  $response["status"]="USERNAME exist";
}
else{


    $result=mysqli_query($conn,"INSERT INTO users (username,email,password) VALUES ('$username','$email',$password)");

 $response["success"]=true;#All operations gave been completed.
    }


echo json_encode($response);#encoding RESPONSE into a JSON and returning.
mysqli_close($conn);
exit();
?>