Hello. I am creating a simple shopping cart, I just want the functions to work. I would like to listen to suggestions of how to improve this code. However, currently, the code below brings up a message unexpected $end on line 175, which is the last line. I am fairly new to php and have not got an idea what the problem is. Please help. Thanks
<?php
session_start();
session_register("totalitems");
session_register("cart");
extract($_POST);
//Continue shopping after purchase
if (isset($continue))
{
foreach($cart as $idx=>$num) unset($cart[$idx]);
unset($cart);
}
//Customer Functionality
//Obtain database entry for selected item index
$item=get_stock_item($itemindex);
//Edit cart contents
if ($additem)
{
//Add item to cart
if (!isset($cart[$itemindex])) $cart[$itemindex]=1;
else $cart[$itemindex]++;
$totalitems++;
}
if ($delitem)
{
//Remove item from cart
if (isset($cart[$itemindex]))
{
if ($cart[$itemindex]>1) $cart[$itemindex]--;
else unset($cart[$itemindex]);
$totalitems--;
if ($totalitems==0) unset($cart);
}
}
?>
<html>
<head><title>Bookshop</title></head>
<body>
<form action="<?=$SERVER["PHP_SELF"]?>" method="post">
<?php if ($checkout)
{ ?>
<h3>Checkout:</h3>
<?php generate_order($cart); ?>
<p><input type="submit" name="continue" value="Continue shopping"/></p>
<?php }
else
{ ?>
<h3>Items Currently In Stock:</h3>
<?php list_stock();?>
<p>
Index Number:<input type="text" name="itemindex"/>
<input type="submit" name="additem" value="Add"/>
<input type="submit" name="delitem" value="Remove"/>
</p>
<h3>Items In Shopping Cart:</h3>
<?php list_cart($cart); ?>
<p>
<input type="submit" name="checkout" value="Proceed to checkout"/>
<input type="submit" name="changestatus" value="Log in as owner"/>
</p>
</form>
</body>
</html>
<?php
function list_stock()
{
//Display stock table
$conn=connect();
$res_table=mysql_query("SELECT * FROM Stock");
if ($res_table)
{
print("<table border='1'><thead><th>Index</th><th>Author</th><th>Title</th><th>Price</th><th>Number</th></thead><tbody>");
while ($item_array=mysql_fetch_array($res_table))
{
extract($item_array);
print("<tr><td>$indx</td><td>$author</td><td>$title</td><td>$price</td><td>$number</td><tr>");
}
print("</tbody></table>");
}
disconnect($conn);
}
function list_cart($cart)
{
if (isset($cart))
{
print("<table border='1'><thead><th>Index</th><th>Title</th><th>Price</th><th>Number</th></thead><tbody>");
foreach ($cart as $idx=>$num)
{
$item=get_stock_item($idx);
extract($item);
print("<tr><td>$indx</td><td>$title</td><td>$price</td><td>$num</td></tr>");
}
print("</tbody></table>");
}
else print("<p>The cart is currently empty</p>");
}
function generate_order($cart)
{
if (isset($cart))
{
print("<table border='1'><thead><th>Index</th><th>Title</th><th>Price</th><th>Number</th></thead><tbody>");
$total=0;
foreach ($cart as $idx=>$num)
{
//Obtain details of cart item
$item=get_stock_item($idx);
extract($item);
//Check that enough are in stock
if ($number>=$num)
{
$newnumber=$number-$num;
update($idx,$newnumber);
}
else
{
$num=$number;
update($idx,0);
$notenough="true";
}
$total+=$num*$price;
print("<tr><td>$indx</td><td>$title</td><td>$price</td><td>$num</td></tr>");
}
print("<tr><td colspan='3'>Total Price (£):</td><td>$total</td></tr></tbody></table>");
if (isset($notenough)) print("<p>We regret there is insufficient stock to cover all of your order</p>");
}
else print("<p>The cart is currently empty</p>");
}
function get_stock_item($index)
{
//Obtain the details of a specified stock item
$conn=connect();
$res_table=mysql_query("SELECT * FROM Stock WHERE indx=$index");
if ($res_table) $item_array=mysql_fetch_array($res_table);
disconnect($conn);
return $item_array;
}
function update($index,$number)
{
//Update quantity of an item in stock
$conn=connect();
mysql_query("UPDATE Stock SET number='$number' WHERE indx='$index'");
disconnect($conn);
}
function connect()
{
//Connect to database
$connection=mysql_connect("ftemysql","ku12881","carstairs");
mysql_select_db("ku12881",$connection);
return $connection;
}
function disconnect($connection)
{
//Disconnect from database
mysql_close($connection);
}
?>
