Posts: 6
Location: Toronto, Canada
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Why doesn't this script work? An error comes up but it specifies that the last line is defective but the last line is </HTML>. What could be wrong?
Quote:
<?php
include("db.php");
switch($_GET["action"])
{
case "add_item":
{
AddItem($_GET["id"], $_GET["qty"]);
ShowCart();
break;
}
case "update_item":
{
UpdateItem($_GET["id"], $_GET["qty"]);
ShowCart();
break;
}
case "remove_item":
{
RemoveItem($_GET["id"]);
ShowCart();
break;
}
default:
{
ShowCart();
}
}
function AddItem($itemId, $qty) {
// Will check whether or not this item
// already exists in the cart table.
// If it does, the UpdateItem function
// will be called instead
global $dbServer, $dbUser, $dbPass, $dbName;
// Get a connection to the database
$cxn = @ConnectToDb($dbServer, $dbUser, $dbPass, $dbName);
// Check if this item already exists in the users cart table
$result = mysql_query("select count(*) from cart where cookieId = '" . GetCartId() . "' and itemId = $itemId");
$row = mysql_fetch_row($result);
$numRows = $row[0];
if($numRows == 0)
{
// This item doesn't exist in the users cart,
// we will add it with an insert query
@mysql_query("insert into cart(cookieId, itemId, qty) values('" . GetCartId() . "', $itemId, $qty)");
}
else
{
// This item already exists in the users cart,
// we will update it instead
UpdateItem($itemId, $qty);
}
function UpdateItem($itemId, $qty) {
// Updates the quantity of an item in the users cart.
// If the qutnaity is zero, then RemoveItem will be
// called instead
global $dbServer, $dbUser, $dbPass, $dbName;
// Get a connection to the database
$cxn = @ConnectToDb($dbServer, $dbUser, $dbPass, $dbName);
if($qty == 0) {
// Remove the item from the users cart
RemoveItem($itemId);
}
else {
mysql_query("update cart set qty = $qty where cookieId = '" . GetCartId() . "' and itemId = $itemId");
}
}
function RemoveItem($itemId) {
// Uses an SQL delete statement to remove an item from
// the users cart
global $dbServer, $dbUser, $dbPass, $dbName;
// Get a connection to the database
$cxn = @ConnectToDb($dbServer, $dbUser, $dbPass, $dbName);
mysql_query("delete from cart where cookieId = '" . GetCartId() . "' and itemId = $itemId");
}
function ShowCart() {
// Gets each item from the cart table and display them in
// a tabulated format, as well as a final total for the cart
global $dbServer, $dbUser, $dbPass, $dbName;
// Get a connection to the database
$cxn = @ConnectToDb($dbServer, $dbUser, $dbPass, $dbName);
$totalCost = 0;
$result = mysql_query("select * from cart inner join items on cart.itemId = users.id where cart.cookieId = '" .
GetCartId() . "' order by users.prodname asc");
?>
<html><head><title> Your Shopping Cart </title><script language="JavaScript">
function UpdateQty(item) {
itemId = item.name;
newQty = item.options[item.selectedIndex].text;
document.location.href = 'cart.php?action=update_item&id='+itemId+'&qty='+n ewQty;}
</script></head><body bgcolor="#ffffff">
<h1>Your Shopping Cart</h1>
<form name="frmCart" method="get">
<table width="100%" cellspacing="0" cellpadding="0" border="0">
<tr>
<td width="15%" height="25" bgcolor="red">
<font face="verdana" size="1" color="white">
<b>Qty</b>
</font></td>
<td width="55%" height="25" bgcolor="red">
<font face="verdana" size="1" color="white">
<b>Product</b>
</font></td>
<td width="20%" height="25" bgcolor="red">
<font face="verdana" size="1" color="white">
<b>Price Each</b></font>
</td>
<td width="10%" height="25" bgcolor="red">
<font face="verdana" size="1" color="white">
<b>Remove?</b>
</font></td></tr>
<?php
while($row = mysql_fetch_array($result)) {
// Increment the total cost of all items
$totalCost += ($row["qty"] * $row["itemPrice"]);
?>
<tr>
<td width="15%" height="25">
<font face="verdana" size="1" color="black">
<select name="<?php echo $row["itemId"]; ?>" onChange="UpdateQty(this)">
<?php
for($i = 1; $i <= 20; $i++) {
echo "<option ";
if($row["qty"] == $i) {
echo " SELECTED ";
}
echo ">" . $i . "</option>";
}
?>
</select>
</font></td>
<td width="55%" height="25">
<font face="verdana" size="1" color="black">
<?php echo $row["itemName"]; ?> </font> </td>
<td width="20%" height="25">
<font face="verdana" size="1" color="black">
$<?php echo number_format($row["itemPrice"], 2, ".", ","); ?>
</font></td>
<td width="10%" height="25">
<font face="verdana" size="1" color="black">
<a href="cart.php?action=remove_item&id=<?php echo $row["itemId"]; ?>">Remove</a>
</font></td></tr>
<?php }
// Display the total
?>
<tr>
<td width="100%" colspan="4">
<hr size="1" color="red" NOSHADE>
</td>
</tr>
<tr>
<td width="70%" colspan="2">
<font face="verdana" size="1" color="black">
<a href="products.php"><< Keep Shopping</a>
</font> </td><td width="30%" colspan="2">
<font face="verdana" size="2" color="black">
<b>Total: $<?php echo umber_format($totalCost, 2, ".", ","); ?></b>
</font></td></tr></table>
</form>
</body>
</html>
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__________________
"Measuring a summer's day, I only find it slips away to grey. The hours they bring me pain." - Led Zeppelin
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