Maaf sebelumnya, aku baru belajar PHP tp aku bingung bagaimana caranya agar jika say klik Submit akan terjadi proses simpan ke database dan terjadi proses cetak dari hasil input_an form tersebut, thank atas bantuannya.
Ini contoh coding saya, maaf masih berantakan
<?php
include "../inc/koneksi.php";
if(isset($_POST['kirim']) && ($_POST['kirim']==='Simpan'))
	{
        $tanggal=$_POST['today'];
	$kode = $_POST['kode'];
	$nama=$_POST['nama'];
	$jumlah=$_POST['jumlah'];
	$nopol=$_POST['nopol'];
        $hm=$_POST['hm'];
        $teknisi=$_POST['teknisi'];
	foreach ($kode as $key => $inputData)
		{
		if(empty($nopol) or empty($teknisi) or empty($jumlah[$key]))
 			{
			$error = "<script language='javascript'>
			alert('FORM --> gak komplit, Kang !!');
			document.location='?page=../transaksi/partOut';
			</script>";
			}
 		if(($nopol!="") && ($teknisi!="") && ($jumlah[$key]!="") && ($inputData!=""))
 			{
			$cek_jumlah = mysql_query("SELECT sumStock FROM stock WHERE codeStock = '$inputData'");
                        $result = mysql_fetch_array($cek_jumlah);
                        if($result < $jumlah[$key])
                                   {
                                   echo "<script language='javascript'>
		                   alert('JUMLAH STOCK --> tidak cukup, Kang !!');
		                   document.location='?page=../transaksi/partOut';
		                   </script>";
                                   }
                        else
                                   {
                                   $query = mysql_query("insert into partout values(null,'$tanggal','$inputData','$nama[$key]','$jumlah[$key]','$hm','$nopol','$teknisi')");
				            mysql_query("UPDATE stock SET sumStock = (sumStock - ".$jumlah[$key].") WHERE codeStock ='$inputData'");
                                   if($query)
    				             {
       				        echo"<meta http-equiv='refresh' content='2; url=?page=../transaksi/partOut'>";
					     }
       			              else
       				             {
					     $error= "<script language='javascript'>
					     alert('DATA --> gak masuk, Kang !!');
					     document.location='?page=../transaksi/partOut';
					     </script>";
					     }
                                  }
                        }
                }
     	if(isset($error))
   		{
		echo"$error";
      		}
        }
?>
<script type="text/javascript">
function deleteRow(tableID)
	{
	try {
		var table = document.getElementById(tableID);
		var rowCount = table.rows.length;
		for(var i=0; i<rowCount; i++) 
			{
			var row = table.rows[i];
			var chkbox = row.cells[3].childNodes[0];
			if(null != chkbox && true == chkbox.checked) 
				{
				if(rowCount <= 2) 
					{
					alert("Tidak bisa dihapus semua Kang !!");
					break;
					}
				table.deleteRow(i);
				rowCount--;
				i--;
				}
			}
		}
	catch(e) 
		{
		alert(e);
		}
	}
</script>
<div class="post">
	<h2 class="title"><a href="#">SPAREPART KELUAR</a></h2>
	<p class="meta"><em><?php echo date("l, F j, Y, g:i a");?> Posted by <a href="#">Someone</a></em></p>
	<div class="entry">
		<p>
		<form action="" method="post" name="partOut" class="form">
<table>
	<tr>
		<td width="100">Tanggal</td>
		<td>:</td>
		<td><input name="today" type="text" class="today" onkeypress="return handleEnter(this, event)">
                <a href="javascript:void(0)" onClick="if(self.gfPop)gfPop.fPopCalendar(document.partOut.today);return false;" ><img src="../calender/calender.jpeg" alt="" name="popcal" width="34" height="29" border="0" align="absmiddle" id="popcal" /></a>
  		<td> </td>
		<td> </td>
		<td>HM</td>
		<td>:</td>
		<td>
			<?php
				$result = mysql_query("select * from armada order by hmBis asc");
				$bisArray = "var hm = new Array();\n";
				echo '<select name="hm" onchange="changeHm(this.value)">';
				echo '<option>---</option>';
				while ($row = mysql_fetch_array($result))
					{
    				echo '<option value="' . $row['hmBis'] . '">' . $row['hmBis'] . '
					</option>';
					$bisArray .= "hm['" . $row['hmBis'] . "'] = {name:'" . addslashes(
					$row['nopolBis'])."'};\n";
					}
				echo '</select>';
				echo '<script type="text/javascript">';
				echo $bisArray;
				echo 'function changeHm(id)';
				echo '{';
				echo 'document.getElementById("nopol").value = hm[id].name;';
				echo '}';
				echo '</script>';
			?>
		  </td>
	</tr>
	<tr>
		<td>Teknisi</td>
		<td>:</td>
		<td><input name="teknisi" type="text" id="teknisi" onkeypress="return handleEnter(this, event)"></td>
		<td> </td>
		<td> </td>
		<td>No-Pol Bis</td>
		<td>:</td>
		<td>
                <?php
			$result = mysql_query("select * from armada order by hmBis asc");
			echo '<select name="nopol" id="nopol">';
			echo '<option>---</option>';
			while ($row = mysql_fetch_array($result))
				{
    		        	echo '<option value="' . $row['nopolBis'] . '">' . $row['nopolBis'] . '
				</option>';
				}
				echo '</select>';
		?>
                </td>
	</tr>
	<tr> </tr>
	<tr> </tr>
</table>
<table id="datatable" class="datatable">
<tr>
	<th>Kode</th>
	<th>Nama Barang</th>
	<th>Jumlah</th>
	<th></th>
</tr>
<tr>
		<td>
			<?php
				$result = mysql_query("select * from stock");
				$stockArray = "var prdName = new Array();\n";
				echo '<select name="kode[]" onchange="changeStock(this.value)">';
				echo '<option>---</option>';
				while ($row = mysql_fetch_array($result))
					{
    				echo '<option value="' . $row['codeStock'] . '">' . $row['codeStock'] . '
					</option>';
					$stockArray .= "prdName['" . $row['codeStock'] . "'] = {name:'" . addslashes(
					$row['nameStock'])."'};\n";
					}
				echo '</select>';
			?>
		</td>
		<td><input type="text" name="nama[]" id="nama[]" onkeypress="return handleEnter(this, event)" class="nama"></td>
		<td><input type="text" name="jumlah[]" onkeypress="return handleEnter(this, event)" class="jumlah"/></td>
		<td><input type="checkbox" name="chk[]" onkeypress="return handleEnter(this, event)" onclick="deleteRow('datatable')"/></td>
	</tr>
</table>
<table width="490">
	<tr>
		<td align="right"><input type="button" onclick="javascript:addRow('datatable')" value="Add"></td>
	</tr>
	<tr>
		<td align="center">
                <input type="submit" name="kirim" value="Simpan")>   
		<input type="reset" name="batal" value="Batal"></td>
	</tr>
</table>
<script type="text/javascript">
<?php echo $stockArray;?>
function addActionToSelect()
	{
	$("#datatable select").unbind();
	$("#datatable select").change(function()
		{
		var id = $(this).val();
		$(this).parent().next().find('input').val(prdName[id].name);
		});
	}
$(function(){
addActionToSelect();
});
</script>
</form>
<iframe width=174 height=189 name="gToday:normal:../calender/normal.js" id="gToday:normal:../calender/normal.js" src="../calender/ipopeng.htm" scrolling="no" frameborder="0" style="visibility:visible; z-index:999; position:absolute; top:-500px; left:-500px;">
</iframe>
</p>
</div>
	<p class="metaview"><em><a href="javascript: void(0)" onClick="window.open('../transaksi/viewpartOut.php','mywindow','scrollbars=1, left=250,width=800,height=600')">Edit Data</a></em></p>
</div>