ubah

<?php
$koneksi=mysql_connect("localhost","root","password") or die("koneksi gagal".mysql_error());
mysql_select_db("a",$koneksi)or die("Database gagal dibuka".mysql_error());
$ID=$_GET['ID'];
$sql="select *from tabel_sepatu where kode_sepatu='$ID'";
$qry=mysql_query($sql,$koneksi)or die("query gagal".mysql_error());
$data=mysql_fetch_array($qry);
$kode=$data['kode_sepatu'];

?>
<form action="updatebarang.php" method="post" name="form1" target="_self">
<table><tr>
<td><input name="kodesepatu" type="text" id="kode" value="<? echo"$ID";?>" disabled/>
<input name="ID" type="hidden" id="ID" value="<? echo"$ID";?>"> </td></tr>