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Adding a Service Charge to Shopping Cart using PHP


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4 replies to this topic

#1 GaryORLFC

GaryORLFC

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Posted 02 May 2012 - 06:32 PM

Hi there,

Today I created a shopping cart following the tutorial on YouTube from phpacademy.

If you take a look here, you can see exactly what my (phpacademy's) shopping cart does.

I want to know how you could add a service charge to this shopping cart.

So when the users click PayPal Checkout, the receipt will show up with the users items + a service charge.

Could anyone help me out on this?

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#2 GaryORLFC

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Posted 02 May 2012 - 07:56 PM

Sorry for the bump. Either that, or is there any way to add a fee onto your shipping || handling cost?

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#3 Nahumi

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Posted 04 May 2012 - 03:39 PM

Hello GaryORLFC, Without seeing the source code I can't tell you exactly how to implement this, but if you're using the usual HTML form method for PayPal you can just add the service charge to the "amount" field. If you post your code in the code tags, I can have a proper look at it for you. ^_^
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#4 GaryORLFC

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Posted 07 May 2012 - 08:02 AM

Hi Nahumi,

Thanks for the reply.

Here is the code for the Shopping Cart

<?php

session_start();

$page = 'index2.php';

$connect = mysql_connect("localhost","organis2_admin","dublin") or die("Could not connect to the database.");
mysql_selectdb("organis2_project") or die("Could not find the database.");

if (isset($_GET['add'])) {
$quantity = mysql_query('SELECT id, quantity FROM shoppingcart WHERE id='.mysql_real_escape_string((int)$_GET['add']));
while ($quantity_row = mysql_fetch_assoc($quantity)) {
if ($quantity_row['quantity']!=$_SESSION['quantity_'.(int)$_GET['add']]) {
$_SESSION['quantity_'.(int)$_GET['add']]+='1';
}
}
header('Location: '.$page);
}

if (isset($_GET['remove'])) {
$_SESSION['quantity_'.(int)$_GET['remove']]--;
header('Location:'.$page);
}

if (isset($_GET['delete'])) {
$_SESSION['quantity_'.(int)$_GET['delete']]='0';
header('Location:'.$page);
}

function products(){
$get = mysql_query('SELECT id, product, description, price FROM shoppingcart WHERE quantity > 0 AND id BETWEEN 1 AND 2 ORDER BY id DESC');
if (mysql_num_rows($get)==0){
echo "There are no products to display.";
}
else{
while($get_row = mysql_fetch_assoc($get)){
echo '<p>'.$get_row['product'].'<br />'.$get_row['description'].'<br />&euro;'.number_format($get_row['price'], 2).'<a href="shoppingcart.php?add='.$get_row['id'].'">Add</a></p>';

}
}
}

function products1(){
$get = mysql_query('SELECT id, product, description, price FROM shoppingcart WHERE quantity > 0 AND id BETWEEN 3 AND 5 ORDER BY id DESC');
if (mysql_num_rows($get)==0){
echo "There are no products to display.";
}
else{
while($get_row = mysql_fetch_assoc($get)){
echo '<p>'.$get_row['product'].'<br />'.$get_row['description'].'<br />&euro;'.number_format($get_row['price'], 2).'<a href="shoppingcart.php?add='.$get_row['id'].'">Add</a></p>';

}
}
}

function paypal_products() {
$num = 0;
foreach($_SESSION as $product => $value) {
if ($value!=0) {
if (substr($product, 0, 9)=='quantity_') {
$id = substr($product, 9, (strlen($product)-9));
$get = mysql_query('SELECT id, product, price FROM shoppingcart WHERE id='.mysql_real_escape_string((int)$id));
while ($get_row = mysql_fetch_assoc($get)) {
$num++;
echo '<input type="hidden" name="item_number_'.$num.'" value="'.$id.'">';
echo '<input type="hidden" name="item_name_'.$num.'" value="'.$get_row['product'].'">';
echo '<input type="hidden" name="amount_'.$num.'" value="'.$get_row['price'].'">';
echo '<input type="hidden" name="handling_'.$num.'" value="20">';
echo '<input type="hidden" name="quantity_'.$num.'" value="'.$value.'">';
}
}
}
}
}


function cart() {
$sub="";
$total="";
foreach($_SESSION as $product => $value) {
if ($value>0) {
if (substr($product, 0, 9)=='quantity_') {
$id = substr($product, 9, (strlen($product)-9));
$get = mysql_query('SELECT id, product, price FROM shoppingcart WHERE id='.mysql_real_escape_string((int)$id));
while ($get_row = mysql_fetch_assoc($get)) {
$sub = $get_row['price']*$value;
echo $get_row['product'].' x '.$value.' @ &euro;'.number_format($get_row['price'], 2).' = &euro;'.number_format($sub, 2).'<a href="shoppingcart.php?remove='.$id.'">[-]</a> <a href="shoppingcart.php?add='.$id.'">[+]</a> <a href="shoppingcart.php?delete='.$id.'">[Delete]</a><br />';
}
}
$total += $sub;
}
}
if ($total==0) {
echo "Your cart is empty.";
}
else {
echo 'Total: &euro;'.number_format($total, 2);
?>
<p>
<form action="https://www.paypal.c...cgi-bin/webscr" method="post">
<input type="hidden" name="cmd" value="_cart">
<input type="hidden" name="upload" value="1">
<input type="hidden" name="business" value="admin@organisemiparty.hostingspace.com">
<?php paypal_products(); ?>
<input type="hidden" name="currency_code" value="EUR">
<input type="hidden" name="amount" value="<?php echo $total; ?>">
<input type="image" src="http://www.paypal.co...lick-but03.gif" name="submit" alt="Make payments with PayPal - it's fast, free and secure!">
</form>
</p>

<?php

}
}

?>


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#5 GaryORLFC

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Posted 11 May 2012 - 07:33 AM

Also, could someone help me out with the quantity part of the code? I want to be able to type in the number of items that I want instead of having to click [+] a certain amount of times. So, a form data that lets you input, let's say 7 of a specific item, and then when you click "Add to Cart" it will add 7 to the cart.

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