Question

I have an array of data that I’m getting from this form (form.php):

<?
   include"connect.php";
   $sql = "select * from tbsatpor ";
   $qry = mysql_query($sql);
   echo"<form name='submit' method='POST' action='proses.php'>";
   $no  = 1;
   while ($data = mysql_fetch_array($qry)){
      $nomor  = $no++;
      echo "<input type='text' name='kd_satpor[]' value='$data[kd_satpor]' > 
            <input type='text' name='kd_unor[]' value='$data[kd_unor]' >
            <input type='text' name='buy[]' value=''><br>";
   }
   echo"<input type='submit' name='submit' value='submit'></form>";
?>

Here’s resultpage.php:

<?
  echo "<table border='0' size=100%>
         <tr><td>CODE</td><td>BUY</td><td>UNOR</td><td>TOTAL SUM</td></tr>";
  for ($i=0; $i<count($_POST['buy']);$i++){
     $_session[$i] =  $_POST['kd_satpor'][$i];
     $_session[$_POST['buy'][$i]] =  $_POST['buy'][$i];
     $_session[$_POST['kd_unor'][$i]] =  $_POST['kd_unor'][$i];
     $total[i]  =  $_session[$_POST['kd_unor'][$i]] * $_session[$_POST['buy'][$i]];

     if($total[i]!=0){ 
        echo "<tr><td>".$_session[$i]."</td><td>" .$_session[$_POST['buy'][$i]]." X                
              </td><td>".$_session[$_POST['kd_unor'][$i]]."=</td><td>".$total[i]."</td>
              <td></tr>";
     }
  } 
  echo"</table>";
?>

The data array looks like this (the output of resultpage.php):

CODE   | BUY   | UNOR | SUM
+++++++++++++++++++++++++++++++
024K30 | 10000 | 2    | 20000 | => 10000 x 2 = 20000
024K31 | 2000  | 3    | 6000  | =>  2000 x 3 = 6000
024K32 | 5000  | 3    | 15000 | =>  5000 x 3 = 15000
                        TOTAL?

I want to create TOTAL SUM from the array and show the result from that code. How can I do that?

Answer 1

$finalTotal = 0;

for ($i=0; $i<count($_POST['buy']);$i++)
{
    ...


    $finalTotal += $total[i];
}

echo 'Final Total: ' . $finalTotal;

Also, use $_SESSION not $_session if you intend to use the PHP session and don’t forget to run any POST data through htmlentities() before you echo it out onto a page.