Tugas 5 (PRAK WEB 2)

<html>
<head></head><body>
<?php
$nama=$_POST[nama];
$gol=$_POST[gol];
$jab=$_POST[jab];
$proses=$_POST[proses];
?>
<table border=0 align=center>
<form method=post><tr><th colspan=3 align=center>PT MAJU MUNDUR(A3)</th></tr>
<tr>
  <td>Nama Karyawan </td>
  <td> :</td>
  <td><input type=text name=nama value='<?php echo $nama; ?>'></td>
</tr>
<tr>
  <td>Golongan </td>
  <td> :</td>
  <td><select name=gol>
      <option value=''>--GOLONGAN--</option>
      <option value='1' <?php if($gol=='1') echo 'selected';?>>GOLONGAN I</option>
      <option value='2' <?php if($gol=='2') echo 'selected';?>>GOLONGAN II</option>
      <option value='3' <?php if($gol=='3') echo 'selected';?>>GOLONGAN III</option></select></td>
</tr>
<tr>
  <td>Jabatan </td>
  <td> :</td>
  <td><select name=jab>
      <option value=''>--Jabatan--</option>
      <option value='1' <?php if($jab=='1') echo 'selected';?>>Staff</option>
      <option value='2' <?php if($jab=='2') echo 'selected';?>>Kabag</option>
      <option value='3' <?php if($jab=='3') echo 'selected';?>>Direktur</option></select></td>
</tr>
<tr><td colspan=3 align=center><input type=submit name=proses value='HITUNG'></td></tr>
<?php
$gapok=$_POST[gapok];
$tunj=$_POST[tunj];
$pajak=$_POST[pajak];
$gb=$_POST[gajibersih];
if(isset($proses)){
if($gol=='1')
    {$gapok=1500000;}
elseif($gol=='2')
    {$gapok=2800000;}
elseif($gol=='3')
    {$gapok=3500000;}
if($jab=='1')
    {$tunj=250000;}
elseif($jab=='2')
    {$tunj=700000;}
elseif($jab=='3')
    {$tunj=1000000;}
$pajak=$gapok*5/100;
function gaji($a,$b,$c,$d){
    $a=$b+$c-$d;
    return $a;
}
$gajib=gaji($gb,$gapok,$tunj,$pajak);
}
?>
<tr>
  <td>Gaji Pokok </td>
  <td> :</td>
  <td><input type=text name=gapok value='<?php echo $gapok;?>'></td>
</tr>
<tr>
  <td>Tunjangan </td>
  <td> :</td>
  <td><input type=text name=tunj value='<?php echo $tunj;?>'></td>
</tr>
<tr>
  <td>Pajak </td>
  <td> :</td>
  <td><input type=text name=pajak value='<?php echo $pajak;?>'></td>
</tr>
<tr>
  <td>Gaji Bersih </td>
  <td> :</td>
  <td><input type=text name='gajibersih' value='<?php echo $gajib;?>'></td>
</tr>
</form>
</table>
<hr><CENTER>Copyright ANDI ARY ANGGARA > 2012</CENTER></hr>
</body>
</html>