Browser compatibility issues for shopping carts

From the Internet to find a shopping cart, very easy to use, simple and convenient, but there is a problem: incompatible Ie6/ie7, click on the "Add Shopping cart" button did not respond, and the intranet has a lot of IE6, I looked at a bit, it should be the compatibility of HTML problems, but is not find the problem where, we help to see:

Shopping owner program: cart.php:



<title>Food ordering System</title>

Products

Current URL of the Page. Cart_update.php redirects back to the This URL
$current _url = base64_encode ($url = "http://". $_server[' http_host '].$_server[' Request_uri ']);
Require_once ' class/config.db.php ';
Require_once ' class/db.php ';
$DB =new db ();
$results = $db->query ("select * from the cart ORDER by ID ASC");
if ($results) {

Fetch results set As object and output HTML
while ($obj = $db->fetch_object ($results))
{
Echo ';
Echo ';
Echo ';
}

}
?>

Your Shopping Cart

if (Isset ($_session["Products"]))
{
$total = 0;
Echo '

';
foreach ($_session["Products"] as $cart _itm)
{
Echo '
1. ';
   Echo 'x';
   Echo '

   '. $cart _itm["name"]. '

   ';
   Echo ' P code: '. $cart _itm["code"].
   Echo ' Qty: '. $cart _itm["Qty"].
   Echo ' Price: '. $currency. $cart _itm["Price"].
   Echo '
';
$subtotal = ($cart _itm["Price"]* $cart _itm["qty"]);
$total = ($total + $subtotal);
}
Echo '

';
Echo ' total: '. $currency. $total. ' check-out!';
Echo ' Empty Cart';
}else{
Echo ' Your Cart is empty ';
}
?>





The link of the Submit button, the Point button did not respond. cart_update.php:
Session_Start ();
Include_once ("config.php");

Empty cart by distroying current session
if (Isset ($_get["Emptycart") && $_get["Emptycart"]==1)
{
$return _url = Base64_decode ($_get["Return_url"]); Return URL
Session_destroy ();
Header (' Location: '. $return _url);
}

Add Item in Shopping Cart
if (Isset ($_post["type"]) && $_post["type"]== ' Add ')
{
$product _code = Filter_var ($_post["Product_code"], filter_sanitize_string); Product Code
$product _qty = Filter_var ($_post["Product_qty"], filter_sanitize_number_int); Product Code
$return _url = Base64_decode ($_post["Return_url"]); Return URL

Limit quantity for single product
if ($product _qty > 10) {
Die (' This demo does not allowed more than quantity!
Back-to-products. ');
}

Mysqli query-get details of item from DB using product code
$results = $mysqli->query ("Select Product_name,price from Cart WHERE product_code= ' $product _code ' LIMIT 1");
$obj = $results->fetch_object ();

if ($results) {//we has the product info

Prepare array for the session variable
$new _product = Array (' name ' = = $obj->product_name, ' code ' + $product _code, ' qty ' = = $product _qty, ' Price ' = $obj->price));

if (Isset ($_session["Products"))//if we have the SESSION
{
$found = false; Set found item to False

foreach ($_session["Products"] as $cart _itm)//loop through SESSION array
{
if ($cart _itm["code"] = = $product _code) {//the item exist in array

$product [] = Array (' name ' = = $cart _itm["name"], ' code ' + $cart _itm["code"], ' qty ' = $product _qty, ' price ' = $cart _itm["Price"]);
$found = true;
}else{
Item doesn ' t exist in the list, just retrive old info and prepare array for session VAR
$product [] = Array (' name ' = = $cart _itm["name"], ' code ' + $cart _itm["code"], ' qty ' = $cart _itm["qty"], ' price ' = > $cart _itm["Price"]);
}
}

if ($found = = false)//we didn ' t find item in array
{
Add new user item in array
$_session["Products"] = Array_merge ($product, $new _product);
}else{
Found user item in array list, and increased the quantity
$_session["Products"] = $product;
}

}else{
Create a new session Var if does not exist
$_session["Products"] = $new _product;
}

}

Redirect back to original page
Header (' Location: '. $return _url);
}

Remove item from Shopping Cart
if (Isset ($_get["Removep") && isset ($_get["Return_url"]) && isset ($_session["Products"]))
{
$product _code = $_get["Removep"]; Get the product code to remove
$return _url = Base64_decode ($_get["Return_url"]); Get Return URL


foreach ($_session["Products"] as $cart _itm)//loop through SESSION array var
{
if ($cart _itm["code"]!= $product _code) {//item does,t exist in the list
$product [] = Array (' name ' = = $cart _itm["name"], ' code ' + $cart _itm["code"], ' qty ' = $cart _itm["qty"], ' price ' = > $cart _itm["Price"]);
}

Create a new product list for cart
$_session["Products"] = $product;
}

Redirect back to original page
Header (' Location: '. $return _url);
}
?>

Reply to discussion (solution)

Your form does not have a submit button, and does not give the code submitted via JS
So no browser can produce form submission actions

Your form does not have a submit button, and does not give the code submitted via JS
So no browser can produce form submission actions

Solved, it's a submit.

