session_start();
$host="127.0.0.1";
$username="root";
$password="";
$db="markconnect";
$tb="userform";
//COnnection to database
$mysqli = new mysqli($host,$username,$password,$db) or die(mysqli_error());;

//DEFINE USERNAME AND PASSWORD
$username=$_POST['username'];
$password=$_POST['password'];
$username = stripslashes($username);
$password = stripslashes($password);
$username = mysqli_real_escape_string($mysqli,$username);
$password = mysqli_real_escape_string($mysqli,$password);
$password = md5($password);

$sql="SELECT * FROM $tb WHERE username='$username' and         password='$password'";
$result=mysqli_query($mysqli,$sql);
$count=mysqli_num_rows($result);

if ($count==1) {
    $_SESSION['username'] = $username;
    header("Location: saver.php");
} else {
    echo "Wrong Username or Password";
}
ob_end_flush();