how to insert multiple rows into mysql

Atm i have almost complete the insert page just 2 things left and need some help.


my insert page looks like

<?php
session_start();
$productid=$_SESSION['productid'] ;
$pricetotal=$_SESSION['pricetotal'] ;
$price=$_SESSION['price'] ;
$cartTotal=$_SESSION['cartTotal'] ;
$quantity=$_SESSION['quantity'] ;
$MM_Username = $_SESSION['MM_Username'];
$quantity=$_SESSION['quantity'];

$con = mysql_connect("localhost","root","");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}

mysql_select_db("mypc", $con);

$sql1="INSERT INTO sales(address, paymethod, creditcard,cardtype,username,cartTotal,phone) VALUES
('$_POST[address]','$_POST[RadioGroup1]','$_POST[pass]','$_POST[type]','$MM_Username','$cartTotal','$_POST[phone]')";
if (!mysql_query($sql1,$con))
{
die('Error: ' . mysql_error());
}
$sql2="INSERT INTO orders(unitprice,pricetotal,quantity,productid ) VALUES
('$price','$pricetotal','$quantity','$productid')";
if (!mysql_query($sql2,$con))
{
die('Error: ' . mysql_error());
}


mysql_close($con)
?>


1--> Atm sql2 insert only the last product's id at the table.
I need to insert all products chosen by the user.
If for example made 10 selections then i insert all 10 rows into mysql

2--> I want to display a message to him like "the processing was successfull" but in the same page. Atm when i insert the products i see a blank page or a message which i removed.

Use a loop.

I tried this but i get an error on forech... any suggestions?

foreach ($_SESSION['productid'] as $value)
{
echo $sql2="INSERT INTO orders(unitprice,pricetotal,quantity,productid ) VALUES
('$price','$pricetotal','$quantity','$value')";
if (!mysql_query($sql2,$con))
{
die('Error: ' . mysql_error());
}
}

Ok i have managed to insert into the table equal products like products the user chose, but though my data is not all correct i working on it know if u have any suggestions tnx!!

foreach ($_SESSION['cart_array'] as $value) {
$sql2="INSERT INTO orders(unitprice,pricetotal,quantity,productid,username ) VALUES
('$price','$pricetotal','$quantity','$productid','$MM_Username')";
if (!mysql_query($sql2,$con))
{
die('Error: ' . mysql_error());
}
}


And my cart

$cartOutput="";
$cartTotal="";
if(!isset($_SESSION["cart_array"])||count($_SESSION["cart_array"])<1){
$cartOutput="<h2 align='center'>your shopping cart is empty</h2>";
}else{
$i=0;
foreach($_SESSION["cart_array"]as $each_item){
$item_id=$each_item['item_id'];
$sql=mysql_query("SELECT productid,productname,price,image FROM products WHERE productid='$item_id' LIMIT 1");
while($row= mysql_fetch_array($sql)){
$productname=$row['productname'];
$price=$row['price'];
$image=$row['image'];
$productid=$row['productid'];
}
$pricetotal=number_format($price*$each_item['quantity'],2,".","");
$cartTotal=number_format($pricetotal+$cartTotal,2,".","");

$cartOutput.="<tr>";
$cartOutput.='<td><img src="images/site pic 2/mysql/'.$image.'" width="45" height="45" /></td>';
$cartOutput.='<td>'. $productid.'</td>';
$cartOutput.='<td>'. $productname.'</td>';
$cartOutput.='<td>$'. $price.'</td>';
$cartOutput.='<td><form action="mycart.php" method="post">
<input name="quantity" type="text" value="'. $each_item['quantity'].'" size="1" maxlength="2" />
<input name="adjustBtn'.$item_id.'" type="submit" value="change" />
<input name="item_to_adjust" type="hidden" value="'.$item_id.'" />
</form></td>';
//$cartOutput.='<td>'. $each_item['quantity'].'</td>';
$cartOutput.='<td>$'. $pricetotal.'</td>';
$cartOutput.='<td><form action="mycart.php" method="post">
<input name="deleteBtn'.$item_id.'" type="submit" value="X" />
<input name="index_to_remove" type="hidden" value="'.$i.'" />
</form>
</td>';
$cartOutput.='</tr>';
$i++;