<?php

if(isset($_POST['j'])){
    $j=$_POST['j'];
}
else{
    $j=1;
}



?>
<form method="post" action="hitung.php">
<div><input type="text" name="napem" class="form-control" style="width: 200px; margin-top: -30px;" placeholder="Nama Pembeli" required=""/><br />
<?php
for($i=1;$i<=$j;$i++){
?><div class="container">
<div class="row">
<div class="col-md-8"><div class="col-md-6" style="margin-bottom: 8px;">
<select name="hp<?php echo $i;?>" class="form-control">
<?php
$query=mysql_query("select * from barang order by id DESC");
while($array=mysql_fetch_array($query)){
    ?><option><?php echo $array['nama']; ?></option>
    <?php
}
?>
</select>
</div>
<div class="col-md-6">
<input type='text' placeholder="Jumlah Item" name='jml<?php echo $i;?>' id="an" oninput="angka()" class="form-control" />
</div>
</div>


<?php }
?>