perbaikan aja

<?php
/*
perbaikan dariku
*/
include "lib.php";
$id = isset($_GET['id'])?$_GET['id']:0;
if($id!=0){
$query = "select * from pelanggan where id_pelanggan = '$id'";
$tampil = mysql_query($query);
($data = mysql_fetch_array($tampil);
?>
<input type="text" name="id" value="<?php echo $data['id_pelanggan'];?>" /></br>
<input name="nama" type="text" value="<?php echo $data['nama_pelanggan'];?>">
<?php

}else{
echo 'not valid bro';

}