pagination php, aku buat ini kok error belum muncul pagination

coba share kodingnya pake menu code yang disedianin aja gan dikanan pojok kalo kita tulis komentar..

 <?php
$host = 'localhost'; //127.0.0.1
$user = 'root';
$pass = ''; // ''
$db   = 'totarial';

$link = mysqli_connect($host, $user, $pass, $db) or die(mysqli_error($link));

$perPage = 3; //per halaman
$page    = isset($_GET["halaman"]) ? (int)$_GET["halaman"] : 1;
$start   = ($page > 1) ? ($page * $perPage) - $perPage : 0;

$articles = "SELECT * FROM blog LIMIT $start, $perPage";
$result2 = mysqli_query($link, $articles);

$result = mysqli_query($link, "SELECT * FROM blog");
$total  = mysqli_num_rows($result);

$pages = ceil($total/$perPage);
?>

<?php while($row = mysqli_fetch_assoc($result2)) {?>
  <p> <?php echo $row["judul"] ?></p>
<?php } ?>

<div class="">
  <?php for($i=1; $i<=$pages; $i++){ ?>
      <a href="?halaman=<? echo $i?>"> <? echo $i?></a>
  <?php } ?>
</div>

yang ini ada yang kurang kayanya gan

 <a href="?halaman=<? echo $i?>"> <? echo $i?></a>

coba dirubah jadi

 <a href="?halaman=<?php echo $i ?>"> <?php echo $i ?></a>

atau kalo mau penulisan pendeknya kaya gini..

 <a href="?halaman=<?= $i ?>"> <?= $i ?></a>