depreciated sql functions used

[FirdousBhat]

pls update the code

[Darlenequame]

deprecated SQL code used

modified code

---

$username = $_POST['username'];
$password = $_POST['password'];
$username = stripslashes($username);
$password = stripslashes($password);
$username = $mysqli->escape_string($_POST['username']);
$password = $mysqli->escape_string($_POST['password']);
$_SESSION['login_username']=$username;
$sql = "SELECT usertype FROM users WHERE userid='$username' and password='$password'";
$result = mysqli_query($mysqli);
$count = mysqli_num_rows($result);
$type = mysqli_fetch_array($result);
$control = $type['usertype'];