Script Itemshop

<div id="main_content_item">
    <div id="main_content_item_title">
      <p class="textstyle_main_content_item_title">ItemShop</p>
</div>

<center>
<?PHP

  if(isset($_SESSION['user_admin']) && checkInt($_SESSION['user_admin']) && $_SESSION['user_admin']>=0) {
    if(isset($_GET['k']) && checkInt($_GET['k'])) {
      $sqlCmdS="SELECT * FROM ".SQL_HP_DB.".is_items WHERE kategorie_id='".$_GET['k']."' ORDER BY id DESC";
    }
    else {
      $sqlCmdS="SELECT * FROM ".SQL_HP_DB.".is_items ORDER BY id DESC";
    }
  ?>
    <h2>Aveti</h2><br>
    <p><b><i><?PHP echo $_SESSION['user_coins']; ?></i> <br><br>Monede Dragon</b></p>
    <br>
    <br>
    <h2>Categorii</h2><br>
    <ul>
<li><a href="index.php?s=itemshop&k=1">General</a></li>
<li><a href="index.php?s=itemshop&k=2">Arme</a></li>
<li><a href="index.php?s=itemshop&k=3">Armuri</a></li>
<li><a href="index.php?s=itemshop&k=4">Costume</a></li>
<li><a href="index.php?s=itemshop&k=5">Obiecte de dezvoltare</a></li>
<li><a href="index.php?s=itemshop&k=6">Bijuterii</a></li>
    </ul>
  <div id="iscenter">
    <br>
        <br>
      <table>
    <?PHP
      $sqlQry=mysql_query($sqlCmdS,$sqlHp);
      while($getItems=mysql_fetch_object($sqlQry)) {
        $aktItem = compareItems($getItems->vnum);
        $itemStufe = (checkInt($aktItem['stufe'])) ? "+".$aktItem['stufe'] : '';
        ?>
  <tr>
    <th width="111" scope="row"><img src="./is_img/<?PHP echo $getItems->item_pics; ?>" alt="" />
    <a href="index.php?s=is_buy&amp;id=<?PHP echo $getItems->id; ?> ">
    <br><br>
    <input type="submit" value="Cumpara"  class="is_btn" />
    </a></th>
    <td width="500"><center><b><?PHP echo $getItems->item_name; ?></b><br><br><i><?PHP echo $getItems->item_info; ?></i><br /><br>
<strong>Pretul Actual:</strong><b> <?PHP echo $getItems->preis; ?> Monede Dragon</b><br><br><br><br><br></td>
  </tr>
        <?PHP
      }
    ?>
      </table>
  </div>
  <?PHP
  }
  else {
    echo'<meta http-equiv="refresh" content="1; URL=index.php?s=nincsbelepve"> ';
  }
?>
</center>

<div style="clear: both"></div>
</div>
<div class="bottom"></div>