If Else statement

[gobbles]

Hey All,

I was wondering if someone could help me with a couple of statements im trying to write.

I have a shopping cart, and im trying to implement a individual shipping cost per product and a secondary shipping price for additional products and quantitys.

I just cant seem to get my head around the statement ... basically this is how it should go:

if theres more than one product in the cart then
get primary shipping cost of 1st product
how much qty? any additional product?
for each additional products and qty's use secondary shipping price ( which is defined for each product)
else if there is only one product and one qty then
use primary shipping cost.

Hows that sound ... I cant get my head around it at all.

to give a real world example:

Listed below are 2 products with their details

Product: Canon Digi Camera
Primary Shipping Cost: $20
Additional Shipping Cost: $1

Product: DVD Player
Primary Shipping Cost: $40
Additional Shipping Cost: $2

If i buy 2 digi cameras, the total shipping price will be $21
$20 + $1

If i buy 1 digi camera and 1 DVD player, the total shipping price will be $22
$20 + $2

If i buy 1 digi camera and 4 DVD players, the shipping will be $28
$20 + $2 + $2 + $2 + $2

I hope thats a better explaination of it.

If any could help me get my head around this it would be greatly appreciated, i have been pulling my hair out about this for months now.

Cheers

[Rodney_H_]

This might help you, or get you pointed in the right direction. It is psuedo-code, and not necessarily correct in syntax, but was written to help you with the THEORY of what you are doing... Hope it helps:

<?php
// if only 1 product and qty of 1
if(count($products) == 1  &&  $products['qty'][0] == 1)
{
	// use primary shipping cost	
	$TOTAL = $products['cost'][0] + $products['shipping_1'][0];
}

// 1 product in quantity greater than 1
elseif(count($products) == 1  &&  $products['qty'][0] > 1)
{
	// Total = cost times quantity
	$TOTAL = ($products['cost'][0] * $products['qty'][0]);

// add primary shipping to first item
$TOTAL = $TOTAL + $products['shipping_1'][0];

// add secondary shipping (for all except first item)
$TOTAL = $TOTAL + ($products['qty'][0] - 1) * $products['shipping_2'][0]);
}

// else more than one product AND more than one quantity
else {

// find total count of products in cart
$TOTAL = $products['cost'][0] + $products['shipping_1'][0];

// loop through other products in cart
foreach($products as $var=>$val)
{
	// add cost and (quantity * secondary shipping) 
}
}
?>

[gobbles]

Thanks for your quick reply.

I tried to implement the code that you gave, but came through with some errors, the following code works perfect if theres only 1 product in the cart, if i update the qty, everything.

But it doesnt work with multiple products in the cart, when there are multiple products, it adds the primary ($products_ship_price) instead of adding the additional ($products_ship_price_two)

$this->vendor_shipping[$vendors_id]['ship_cost'] += ($products_ship_price);
if ($this->vendor_shipping[$vendors_id]['ship_cost'] >= 2.5000)
$this->vendor_shipping[$vendors_id]['ship_cost'] = ($this->vendor_shipping[$vendors_id]['ship_cost']);
if ($quantity > 1) {
$this->vendor_shipping[$vendors_id]['ship_cost'] += ($products_ship_price_two * ($quantity-1));
}