Hi guys, I am having a slight problem with a php script shopping cart. Well, what I want to accomplish is to have products from different pages go to the same shopping cart with no script errors which is my problem. For example, the products page will show only the icon and quantity but no unit price, description, nor total. However, on the shirts page it will show all the details of that purchase. The following script has two pages. Product page and a Product page 2 that concide with Item_Id and Item_Id_2 which are respectively two pages.
I get these errors when I run the code and I know its pulling from product page NOT product page 2. Everything goes to the shopping cart from product page 2 with its coinciding Item_Id_2 but NOT product page and its coinciding Item_Id.
Any help will be highly appreciated!!!!
Notice: Undefined variable: price in C:\xampp\htdocs\onlinestore\cart2.php on line 136
Notice: Undefined variable: price in C:\xampp\htdocs\onlinestore\cart2.php on line 141
Notice: Undefined variable: item_id in C:\xampp\htdocs\onlinestore\cart2.php on line 146
Notice: Undefined variable: product_name in C:\xampp\htdocs\onlinestore\cart2.php on line 146
Notice: Undefined variable: product_name in C:\xampp\htdocs\onlinestore\cart2.php on line 147
Notice: Undefined variable: details in C:\xampp\htdocs\onlinestore\cart2.php on line 149
Notice: Undefined variable: price in C:\xampp\htdocs\onlinestore\cart2.php on line 150
<?php
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Section 1 (if user attempts to add something to the cart from the product page)
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
if (isset($_POST['pid'])){
$pid=$_POST['pid'];
$wasFound = false;
$i = 0;
// If the cart session variable is not set or cart array is empty
if (!isset($_SESSION["cart_array"]) || count($_SESSION["cart_array"]) < 1) {
// RUN IF THE CART IS EMPTY OR NOT SET
$_SESSION["cart_array"]=array(0 => array("item_id" => $pid, "item_id_2" => $pid, "quantity" => 1));
} else {
// RUN IF THE CART HAS AT LEAST ONE ITEM IN IT
foreach ($_SESSION["cart_array"] as $each_item) {
$i++;
while (list($key, $value) = each($each_item)) {
if ($key == "item_id" && "item_id_2" && $value == $pid) {
// That item is in cart already so let's adjust its quantity using array_splice()
array_splice($_SESSION["cart_array"], $i-1, 1, array(array("item_id" => $pid, "item_id_2" => $pid, "quantity" => $each_item['quantity'] + 1)));
$wasFound = true;
} // close if condition
} // close while loop
} // close foreach loop
if ($wasFound == false) {
array_push($_SESSION["cart_array"], array("item_id" => $pid, "item_id_2" => $pid, "quantity" => 1));
}
}
header("location: cart2.php");
exit();
}
?>
<?php
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Section 2 (if user chooses to empty their shopping cart)
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
if (isset($_GET['cmd'])&& $_GET['cmd'] == "emptycart") {
unset($_SESSION["cart_array"]);
}
?>
<?php
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Section 3 (if user chooses to adjust their item quantity)
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
if (isset($_POST['item_to_adjust']) && $_POST['item_to_adjust'] != "") {
//execute code
$item_to_adjust = $_POST['item_to_adjust'];
$quantity = $_POST['quantity'];
If($quantity >=100){$quantity = 99;}
If($quantity < 1) {$quantity = 1;}
$i = 0;
foreach ($_SESSION["cart_array"] as $each_item) {
$i++;
while (list($key, $value) = each($each_item)) {
if ($key == "item_id" && "item_id_2" && $value == $item_to_adjust) {
// That item is in cart already so let's adjust its quantity using array_splice()
array_splice($_SESSION["cart_array"], $i-1, 1, array(array("item_id", "item_id_2" => $item_to_adjust, "quantity" => $quantity)));
} // close if condition
} // close while loop
} // close foreach loop
}
?>
<?php
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Section 4 (if user wants to remove an item from cart)
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
if (isset($_POST['index_to_remove']) && $_POST['index_to_remove'] != "") {
// Access the array and run code to remove that array index
$key_to_remove = $_POST['index_to_remove'];
if (count($_SESSION["cart_array"]) <= 1) {
unset($_SESSION["cart_array"]);
} else {
unset($_SESSION["cart_array"]["$key_to_remove"]);
sort($_SESSION["cart_array"]);
}
}
?>
<?php
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Section 5 (render the cart for the user to view on the page)
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
$cartOutput = "";
$cartTotal = "";
if(!isset($_SESSION["cart_array"])||count($_SESSION["cart_array"])<1){
$cartOutput="<h2 align = 'center'> Your shopping cart is empty </h2>";
} else {
$i = 0;
foreach($_SESSION["cart_array"] as $each_item) {
$item_id_2 = $each_item ['item_id_2'];
$sql = mysql_query("SELECT * FROM shirts WHERE id_2 = '$item_id_2' LIMIT 1");
while ($row = mysql_fetch_array($sql)) {
$product_name = $row["product_name"];
$price = $row ["price"];
$details = $row ["details"];
}
$pricetotal = $price * $each_item['quantity'];
$cartTotal = $pricetotal + $cartTotal;
$pricetotal = number_format($price * $each_item['quantity'],2);
$cartTotal = number_format($cartTotal,2);
//Dynamic table row assembly
$cartOutput.= '<tr>';
$cartOutput.= '<td><a href = "product.php?id=' . $item_id . '", "product2.php?id=' . $item_id_2 . '">' . $product_name . '</a><br/>
<img src ="inventory_images/' . $item_id_2 . '.jpg"alt="' . $product_name . '"width="40"height="52"border="1"/> </td>';
$cartOutput.= '<td>'.$details. '</td>';
$cartOutput.= '<td>$'.$price. '</td>';
$cartOutput.= '<td><form action = "cart2.php" method = "post">
<input name = "quantity" type = "text" value = "' . $each_item['quantity'] . '" size = "1" maxlength = "2" />
<input name = "adjustBtn' .$item_id_2. '" type = "submit" value = "Update" />
<input name = "item_to_adjust" type = "hidden" value = "' .$item_id_2. '"/>
</form></td>';
$cartOutput.= '<td>$' . $pricetotal . '</td>';
$cartOutput.= '<td><form action = "cart2.php" method = "post"><input name = "deleteBtn' . $item_id_2 .'" type = "submit" value = "Remove"/><input name = "index_to_remove"
type = "hidden" value = "' . $i . '" /></form></td>';
$cartOutput.= '</tr>';
$i++;
}
$cartTotal = "<div align = 'right'>Cart Total: $".$cartTotal." USD </div>";
}
?>
