$host = 'db.soic.indiana.edu';
$user = 'caps16_team40';
$pass = 'my+sql=caps16_team40';
$db = 'caps16_team40';

$con = mysqli_connect($host, $user, $pass, $db);

if (!$con) {
  printf("Connection failed: %sn", mysqli_connect_error());
  exit();
}

$query ="UPDATE user_info VALUES (?, ?, ?, ?, ?, ?)"; // make this query into "update query"
$statement = mysqli_prepare($con, $query);

if($statement === FALSE){ die(mysqli_error($link)); }

mysqli_stmt_bind_param($statement, "isssss" ,$UserID, $LastName, $FirstName, $Username, $EmailAddress, $Password);

$LastName = $_POST["LastName"];
$FirstName = $_POST["FirstName"];
$Username = $_POST["Username"];
$EmailAddress = $_POST["EmailAddress"];
$Password = $_POST["Password"];

mysqli_stmt_execute($statement);

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

echo json_encode($response);