Gan mhon bantuannya lagi blajar php dapt masalh di sini, dimna ksalahannya yah?

<?php

 include "../config/koneksi.php";

 $edit = mysql_query("SELECT * FORM user 

 WHERE id_user='$_GET[id]'");

 $r = mysql_fetch_array($edit);

 

 echo"<h2>Edit User</h2><hr></hr>

 <form method='POST' action='update_user.php'>

 <input type=hidden name=id value='$r[id_user]'>

 <table>

 <tr>

 <td>Username</td>

 <td><input type='text' name='id_user' value='$r[id_user]'></td>

 </tr>

 <tr>

 <td>Password</td>

 <td><input type='password' name='password'> *)</td>

 </tr>

 <tr>

 <td>Nama Lengkap</td>

 <td><input type='text' name='nama_lengkap' size='30' value='$r[nama_lengkap]'></td>

 </tr>

 <tr>

 <td>E-mail</td>

 <td><input type='text' name='email' size='30' value='$r[email]'></td>

 </tr>

 <tr>

 <td colspan='2'>

 *) Apabila password tidak dirubah kosongkan saja.

 </td>

 </tr>

 <tr>

 <td colspan='2'>

 <input type='submit' value='Update'>

 <input type='Button' value='Batal'>

 </td>

 </tr>

 </table>

 </form>";

?>