buat file (jenis_edit)

buat file (jenis_edit.php) 

<?php
if( empty( $_SESSION['iduser'] ) ){
//session_destroy();
$_SESSION['err'] = '<strong>ERROR!</strong> Anda harus login terlebih dahulu.';
header('Location: ./');
die();
} else {
if( isset( $_REQUEST['submit'] )){
//simpan perubahan jenis pembayaran
$tapel = $_REQUEST['tapel'];
$tingkat = $_REQUEST['tingkat'];
$jumlah = $_REQUEST['jumlah'];

$sql = mysql_query("UPDATE jenis_bayar SET jumlah='$jumlah' WHERE th_pelajaran='$tapel' AND tingkat='$tingkat'");

if($sql > 0){
header('Location: ./admin.php?hlm=master&sub=jenis');
die();
} else {
echo 'ada ERROR dg query';
}
} else {
//form edit jenis pembayaran
$tapel = $_REQUEST['tapel'];
$tingkat = $_REQUEST['tingkat'];

$sql = mysql_query("SELECT * FROM jenis_bayar WHERE th_pelajaran='$tapel' AND tingkat='$tingkat'");
list($thn,$tk,$jml) = mysql_fetch_array($sql);
?>
<h2>Edit Jenis Pembayaran</h2>
<hr>
<form method="post" action="admin.php?hlm=master&sub=jenis&aksi=edit" class="form-horizontal" role="form">
<div class="form-group">
<label for="tapel" class="col-sm-2 control-label">Tahun Pelajaran</label>
<div class="col-sm-2">
<input type="text" class="form-control" id="tapel" name="tapel" value="<?php echo $thn; ?>" required autofocus>
</div>
</div>
<div class="form-group">
<label for="tingkat" class="col-sm-2 control-label">Tingkat</label>
<div class="col-sm-2">
<select name="tingkat" id="tingkat" class="form-control">
<option value="X"<?php echo ($tk=='X') ? 'selected' : ''; ?>>X (sepuluh)</option>
<option value="XI"<?php echo ($tk=='XI') ? 'selected' : ''; ?>>XI (sebelas)</option>
<option value="XII"<?php echo ($tk=='XII') ? 'selected' : ''; ?>>XII (dua belas)</option>
</select>
</div>
</div>
<div class="form-group">
<label for="jumlah" class="col-sm-2 control-label">Jumlah Nominal</label>
<div class="col-sm-3">
<div class="input-group">
<span class="input-group-addon">Rp.</span>
<input type="text" class="form-control" id="jumlah" name="jumlah" value="<?php echo $jml; ?>" required>
</div>
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<button type="submit" name="submit" class="btn btn-default">Simpan</button>
<a href="./admin.php?hlm=master&sub=jenis" class="btn btn-link">Batal</a>
</div>
</div>
</form>
<?php
}
}
?>
x