Developing a Shopping Cart for a Website Now that you have built a web page for

Question

Developing a Shopping Cart for a Website

Now that you have built a web page for your business, you will be adding a shopping cart allowing users to add and remove items from it.

Modify your Products page to include an Add link, under each item (this link is a simple <A href> tag that will direct the user to another page, that will add the item to a cookie list). When the user clicks Add, he or she is directed to the Shopping Cart page (a PHP page that runs on the server side) where the item is stored inside a cookie.

Your Products page needs to also have a Remove link next to the Add link. When the user clicks Remove, the item needs to be removed by simply deleting its information from the cookie where the item was stored. It is a good idea to use the item Name or ID as an indicator to determine which cookie to remove.

The Shopping Cart PHP page needs to add the item to a cookie list and then display the contents of the cookie list to the user—to show the items added to the cart. The items can be displayed in a table format. Remember, each item is stored in a different cookie or you can use one cookie to store all the items, you simply add a separator between each item. For example, a cookie could contain the following items: Hat, Pants, and T-Shirt.

You can use PHP script to parse the cookie content by splitting the contents into three separate items or you may also use an array of cookies to store multiple items.

Submit your code as well as a test plan, in a 4- to 5-page Microsoft Word document consisting of:

Screenshots of your project (showing design, data entered, and displayed)

A paragraph explaining how you tested your project

All HTML or PHP script zipped under one file

Support your responses with examples.

---

I would like to understand the process behind all of this, as the text book we have is not very helpful right now, and doing a Google search is not showing me a process how to accomplish the assignment. Also the professor is a bit slow in responding.

Explanation / Answer

<div class="shopping-cart">
<h2>Your Shopping Cart</h2>
<?php
if(isset($_SESSION["products"]))
{
  $total = 0;
  echo '<ol>';
  foreach ($_SESSION["products"] as $cart_itm)
  {
  echo '<li class="cart-itm">';
  echo '<span class="remove-itm"><a href="cart_update.php?removep='.$cart_itm["code"].'&return_url='.$current_url.'">&times;</a></span>';
  echo '<h3>'.$cart_itm["name"].'</h3>';
  echo '<div class="p-code">P code : '.$cart_itm["code"].'</div>';
  echo '<div class="p-qty">Qty : '.$cart_itm["qty"].'</div>';
  echo '<div class="p-price">Price :'.$currency.$cart_itm["price"].'</div>';
  echo '</li>';
  $subtotal = ($cart_itm["price"]*$cart_itm["qty"]);
  $total = ($total + $subtotal);
  }
  echo '</ol>';
  echo '<span class="check-out-txt"><strong>Total : '.$currency.$total.'</strong> <a href="view_cart.php">Check-out!</a></span>';
  echo '<span class="empty-cart"><a href="cart_update.php?emptycart=1&amp;return_url='.$current_url.'">Empty Cart</a></span>';
}else{
  echo 'Your Cart is empty';
}
?>
</div>

Adding and Removing items from Cart:

<?php
session_start(); //start session
include_once("config.php"); //include config file

//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('<div align="center">This demo does not allowed more than 10 quantity!<br /><a href="http://sanwebe.com/assets/paypal-shopping-cart-integration/">Back To Products</a>.</div>');
  }

  //MySqli query - get details of item from db using product code
  $results = $mysqli->query("SELECT product_name,price FROM products WHERE product_code='$product_code' LIMIT 1");
  $obj = $results->fetch_object();
  
  if ($results) { //we have the product info
  
  //prepare array for the session variable
  $new_product = array(array('name'=>$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);
}

?>

View Item Summary:

<?php
session_start();
include_once("config.php");
  if(isset($_SESSION["products"]))
  {
  $total = 0;
  echo '<form method="post" action="PAYMENT-GATEWAY">';
  echo '<ul>';
  $cart_items = 0;
  foreach ($_SESSION["products"] as $cart_itm)
  {
$product_code = $cart_itm["code"];
$results = $mysqli->query("SELECT product_name,product_desc, price FROM products WHERE product_code='$product_code' LIMIT 1");
$obj = $results->fetch_object();

  echo '<li class="cart-itm">';
  echo '<span class="remove-itm"><a href="cart_update.php?removep='.$cart_itm["code"].'&return_url='.$current_url.'">&times;</a></span>';
  echo '<div class="p-price">'.$currency.$obj->price.'</div>';
  echo '<div class="product-info">';
  echo '<h3>'.$obj->product_name.' (Code :'.$product_code.')</h3> ';
  echo '<div class="p-qty">Qty : '.$cart_itm["qty"].'</div>';
  echo '<div>'.$obj->product_desc.'</div>';
  echo '</div>';
  echo '</li>';
  $subtotal = ($cart_itm["price"]*$cart_itm["qty"]);
  $total = ($total + $subtotal);

  echo '<input type="hidden" name="item_name['.$cart_items.']" value="'.$obj->product_name.'" />';
  echo '<input type="hidden" name="item_code['.$cart_items.']" value="'.$product_code.'" />';
  echo '<input type="hidden" name="item_desc['.$cart_items.']" value="'.$obj->product_desc.'" />';
  echo '<input type="hidden" name="item_qty['.$cart_items.']" value="'.$cart_itm["qty"].'" />';
  $cart_items ++;
  
  }
  echo '</ul>';
  echo '<span class="check-out-txt">';
  echo '<strong>Total : '.$currency.$total.'</strong> ';
  echo '</span>';
  echo '</form>';
  
  }else{
  echo 'Your Cart is empty';
  }
?>

Related Questions

Navigate

• Browse (All)
• Browse D
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.