if (isset($_POST['Login'])) {
        $username = $_POST['email'];
        $store_password = $_POST['pword'];
        check($username, $store_password);
    }
    function check($username, $pword){
        $conn = mysqli_connect('localhost', 'root', 'root', 'Registrar');
        $check = "SELECT * FROM Users WHERE email='$username'";
        $check_q = mysqli_query($conn, $check) or die("<div class='loginmsg'>Error on checking Username<div>");
        if (mysqli_num_rows($check_q) == 1) {
            login($username, $pword);
        }
        else{
            echo "<div id='loginmsg'>Wrong Email or Password</div>";
        }
    }


function login($username, $pword){
  $conn = mysqli_connect('localhost', 'root', 'root', 'Registrar');
      $login = "SELECT * FROM Users WHERE email='$username'  and pword='$pword'";
      $login_q = mysqli_query($conn, $login) or die('Error on checking Username and Password');
      if (mysqli_num_rows($login_q) == 1){
    header('Location: account.php');
    echo"<div id='loginmsg'> Logged in as $username </div>";
          $_SESSION['username'] = $username;
      }
      else {
          echo "<div id='loginmsg'>Wrong Password </div>";
      }
  }

$uname = $_POST['uname'];
$email = $_POST['email'];
$pword = $_POST['pword'];
$store_password = password_hash('pword', PASSWORD_BCRYPT, array('cost' => 10));

if (password_verify($given_password, $stored_password)) {
    echo 'Password is valid!';
} else {
    echo 'Invalid password.';
}

function login($username, $pword){
    $conn = mysqli_connect('localhost', 'root', 'root', 'Registrar');
        $login = "SELECT email, pword FROM Users WHERE email='$username'";
        $login_q = mysqli_query($conn, $login) or die('Error on checking Username and Password');
        if (mysqli_num_rows($login_q) == 1){
  if(password_verify($pword, mysqli_fetch_field($login_q,1))){
      header('Location: account.php');
      echo"<div id='loginmsg'> Logged in as $username </div>";
            $_SESSION['username'] = $username;
        }
  else {
    echo "<div id='loginmsg'>Wrong Password </div>";
        }
  }
  else {
    echo "<div id='loginmsg'>Unknown Username </div>";
}
    }

// This is just simple but you can make this as elaborate as you want, but
// if you always use the same function to connect, you will will find troubleshooting
// that much easier.
function connection()
    {
        return new PDO('mysql:host=localhost;dbname=Registrar','root','root');
    }
// You want to make a simple validation function where that's all it does,
// you don't want to put a bunch of html in here because you can reuse this function
// elsewhere in other scripts if need be.
function validate($email,$password,$con)
    {
        // Just look up by email only
        $sql = "SELECT * FROM `Users` WHERE `email`= ?";
        $query = $con->prepare($sql);
        $query->execute(array($email));
        $result = $query->fetch(PDO::FETCH_ASSOC);
        // If you don't get a row, just return false (didn't validate)
        if(empty($result['email']))
            return false;
        // $result['password'] should have been stored as a hash using password_hash()
        return password_verify($password,$result['password']);
    }
// Do a quick updater to make it easier on yourself.
// You don't use this in this script but it gives you an idea about what to
// do when you are saving passwords via password_hash()
function updatePassword($email,$password,$con)
    {
        $hash = password_hash($password, PASSWORD_DEFAULT);
        $sql = 'UPDATE `Users` set `password` = ? where `email` = ?';
        $query = $con->prepare($sql);
        $query->execute(array($hash,$email));
    }

session_start();
$con = connection();
// Check there is a post and that post is valid email address
// At this point you can add more messaging for errors...
if(!empty($_POST['email']) && filter_var($_POST['email'],FILTER_VALIDATE_EMAIL)) {
    // Run our validation function
    $valid = validate($_POST['email'],$_POST['password'],$con);
    if($valid) {
        $_SESSION['username'] = $_POST['email'];
        header('Location: account.php');
        exit;
    }
    else {
        die("<div id='loginmsg'>Wrong Password</div>");
    }
}