I've been trying for ages to add a form field qty to an array to pass it to
my shopping cart and have finally managed it but not quite.
Please check this cart:
http://www.violasystems.com/shop_testing/
When you add an item using the form text box it doesn't add more than 1 on
the first submit. However if you go back and then add further items it's
will add the multiple products to the cart? I have three functions which
control this and can't see where I'm going wrong:
Submitting the form:
echo table width ='760' background='images/shopbg.gif'form
action='show_cart.php' method='post'trtd width='380'nbsp;/td;
echo td width='200' align='right';
echo bQuantity required: /binput type='text' name='formqty'
value='1' size='3'/td;
echo td width='180' align='left';
echo input type='hidden' name='new' value='$ItemCode';
echo input type='image' src='images/add-to-cart.gif' border ='0' alt
='Add to cart';
echo /td/tr/form/table;
echo table width='760' background='images/shopbg.gif'trtd
width='200'nbsp;/tdtdimg src='images/lower.gif'/td/tr/table;
Processing the form:
?
include ('products_sc_fns.php');
// The shopping cart needs sessions, so start one
session_start();
if($new)
{
//new item selected
if(!session_is_registered(cart))
{
$cart = array();
session_register(cart);
$items = 0;
session_register(items);
$total_price = 0.00;
session_register(total_price);
}
$qty = $formqty;
if($cart[$new])
//$cart[$new]++;
$cart[$new] = $cart[$new] + $qty;
else
$cart[$new] = 1;
$total_price = calculate_price($cart);
$items = calculate_items($cart);
}
if($save)
{
foreach ($cart as $ItemCode = $qty)
{
if($$ItemCode==0)
unset($cart[$ItemCode]);
else
$cart[$ItemCode] = $$ItemCode;
}
$total_price = calculate_price($cart);
$items = calculate_items($cart);
}
do_html_header(Your shopping cart);
//array de-bug
//print_r($cart);
if($cartarray_count_values($cart))
display_cart($cart);
else
{
echo table width='760' cellpadding='0'
background='images/shopbg.gif'trtd width='200'nbsp;/tdtdThere are
no items in your cart;
echo /td/tr/table;
}
$target = index.php;
// if we have just added an item to the cart, continue shopping in that
category
if($new)
{
$details = get_product_details($new);
if($details[catid])
$target = show_cat.php?catid=.$details[catid];
}
$path = $PHP_SELF;
$path = str_replace(show_cart.php, , $path);
echo table width='760' cellpadding='0'
background='images/shopbg.gif'trtd width='200'nbsp;/tdtd
align='left';
display_button($target, continue-shopping, Continue Shopping);
display_button(http://.$SERVER_NAME.$path.checkout.php;,
go-to-checkout, Go To Checkout);
echo /td/tr/table;
do_html_footer();
?
And displaying the cart:
function display_cart($cart, $change = true, $images = 1)
{
// display items in shopping cart
// optionally allow changes (true or false)
// optionally include images (1 - yes, 0 - no)
global $items;
global $total_price;
echo table border = 0 width = 760 cellspacing = 0
background='images/shopbg.gif'
form action = show_cart.php method = post
trth width='200'nbsp;/thth colspan = . (1+$images) .
bgcolor=\#146190\font face='Verdana,Arial' size='-1'
color='White'Item/font/th
th bgcolor=\#146190\font face='Verdana,Arial' size='-1'
color='White'Price/font/thth bgcolor=\#146190\font
face='Verdana,Arial' size='-1' color='White'Quantity/font/th
th bgcolor=\#146190\font face='Verdana,Arial' size='-1'
color='White'Total/font/th/tr;
//display each item as a table row
$qty = $formqty;
foreach ($cart as $ItemCode = $qty)
{
$product = get_product_details($ItemCode);
echo trtd width='200'nbsp;/td;
if($images ==true)
{
echo td align = left;
if (file_exists(images/$ItemCode.jpg))
{
$size = GetImageSize(images/.$ItemCode..jpg);
if($size[0]0 $size[1]0)
{
echo img src=\images/.$ItemCode..jpg\ border=0 ;
echo width = . $size[0]/3 . height = .$size[1]/3 . ;
}
}
else
echo nbsp;;
echo /td;
}
echo td align = left;
echo a href =
\show_products.php?ItemCode=.$ItemCode.\.$product[ItemName]./a
(Code) .$product[ItemCode];
echo /tdtd align = center€ .number_format($product[price], 2);
echo /tdtd align = center;
// if we allow changes, quantities are in text boxes
if ($change == true)
echo input type='text' name='$ItemCode' value='$qty' size='3';
else
echo $qty;
echo /tdtd align = center€
.number_format($product[price]*$qty,2)./td/tr\n;
}
// display total row
echo trth width='200'nbsp;/th
th colspan = . (2+$images) . bgcolor=\#146190\nbsp;/th
th align = center bgcolor=\#146190\font face='Verdana,Arial'
size='-1' color='White'
$items
