Shopping Cart Implementation in CodeIgniter

By: CodexWorld | In: CodeIgniter | Last Updated: Jun 11, 2020

Shopping Cart is a vital part of every e-commerce application that allows the user to select items for purchase. It helps online customers to purchase multiple items at once. Upon checkout, the shopping cart calculates the total amount for the order, handles the shipping, and shows the order preview. The main challenge of e-commerce website development is shopping cart implementation.

The SESSION is used to build shopping cart in PHP. If your application is developed with CodeIgniter, a shopping cart can be easily integrated with Cart Class. CodeIgniter provides Cart library that helps to integrate shopping cart functionality in the CodeIgniter framework. In this tutorial, we will show you how to implement shopping cart in CodeIgniter.

This shopping cart tutorial demonstrates the cart and checkout process in CodeIgniter 3 application. In the example script, the CodeIgniter Cart library will be used to implement core cart functionality. Also, the customer and order information will be stored in the MySQL database.

Before getting started, take a look at the file structure of the CodeIgniter Shopping Cart.

codeigniter_shopping_cart/
├── application/
│   ├── controllers/
│   │   ├── Products.php
│   │   ├── Cart.php
│   │   └── Checkout.php
│   ├── models/
│   │   └── Product.php
│   └── views/
│       ├── products/
│       │   └── index.php
│       ├── cart/
│       │   └── index.php
│       └── checkout/
│           ├── index.php
│           └── order-success.php
├── uploads/
│   └── product_images/
└── assets/
    ├── css/
    │   ├── bootstrap.min.css
    │   └── style.css
    └── js/
        └── jquery.min.js

Create Database Tables

To store the products, customers, and orders information, some tables need to be created in the database.

The following SQL creates a products table in the MySQL database.

CREATE TABLE `products` (
 `id` int(11) NOT NULL AUTO_INCREMENT,
 `image` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
 `name` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
 `description` text COLLATE utf8_unicode_ci NOT NULL,
 `price` float(10,2) NOT NULL,
 `created` datetime NOT NULL,
 `modified` datetime NOT NULL,
 `status` enum('1','0') COLLATE utf8_unicode_ci NOT NULL DEFAULT '1' COMMENT '1=Active | 0=Inactive',
 PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

The following SQL creates a customers table in the MySQL database.

CREATE TABLE `customers` (
 `id` int(11) NOT NULL AUTO_INCREMENT,
 `name` varchar(50) COLLATE utf8_unicode_ci NOT NULL,
 `email` varchar(50) COLLATE utf8_unicode_ci NOT NULL,
 `phone` varchar(15) COLLATE utf8_unicode_ci NOT NULL,
 `address` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
 `created` datetime NOT NULL,
 `modified` datetime NOT NULL,
 `status` enum('1','0') COLLATE utf8_unicode_ci NOT NULL DEFAULT '1' COMMENT '1=Active | 0=Inactive',
 PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

The following SQL creates a orders table in the MySQL database.

CREATE TABLE `orders` (
 `id` int(11) NOT NULL AUTO_INCREMENT,
 `customer_id` int(11) NOT NULL,
 `grand_total` float(10,2) NOT NULL,
 `created` datetime NOT NULL,
 `modified` datetime NOT NULL,
 `status` enum('1','0') COLLATE utf8_unicode_ci NOT NULL DEFAULT '1' COMMENT '1=Active | 0=Inactive',
 PRIMARY KEY (`id`),
 KEY `customer_id` (`customer_id`),
 CONSTRAINT `orders_ibfk_1` FOREIGN KEY (`customer_id`) REFERENCES `customers` (`id`) ON DELETE CASCADE ON UPDATE NO ACTION
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

The following SQL creates an order_items table in the MySQL database.

CREATE TABLE `order_items` (
 `id` int(11) NOT NULL AUTO_INCREMENT,
 `order_id` int(11) NOT NULL,
 `product_id` int(11) NOT NULL,
 `quantity` int(5) NOT NULL,
 `sub_total` float(10,2) NOT NULL,
 PRIMARY KEY (`id`),
 KEY `order_id` (`order_id`),
 CONSTRAINT `order_items_ibfk_1` FOREIGN KEY (`order_id`) REFERENCES `orders` (`id`) ON DELETE CASCADE ON UPDATE NO ACTION
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

Config

autoload.php
Specify some useful library and helper to loaded by default.

$autoload['libraries'] = array('database', 'session');


$autoload['helper'] = array('url');

Controllers

The following controllers are used to handle the shopping cart, checkout, and order submission process.

1. Products.php
The Products controller handles the product listing and Add to Cart functionality.

__construct() – Load cart library and product model.
index() –
- Fetch the products from the database using getRows() function of Product model.
- Pass products data to view and load product list view.
addToCart() –
- Fetch a specific product data by ID.
- Add product to the cart using insert() method of Cart class.

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Products extends CI_Controller{
    
    function  __construct(){
        parent::__construct();
        
        // Load cart library
        $this->load->library('cart');
        
        // Load product model
        $this->load->model('product');
    }
    
    function index(){
        $data = array();
        
        // Fetch products from the database
        $data['products'] = $this->product->getRows();
        
        // Load the product list view
        $this->load->view('products/index', $data);
    }
    
    function addToCart($proID){
        
        // Fetch specific product by ID
        $product = $this->product->getRows($proID);
        
        // Add product to the cart
        $data = array(
            'id'    => $product['id'],
            'qty'    => 1,
            'price'    => $product['price'],
            'name'    => $product['name'],
            'image' => $product['image']
        );
        $this->cart->insert($data);
        
        // Redirect to the cart page
        redirect('cart/');
    }
    
}

2. Cart.php
The Cart controller handles the shopping cart functionality.

__construct() – Load cart library and product model.
index() –
- Retrieve cart data from the session using contents() method of Cart class.
- Pass cart content to view and load cart view.
updateItemQty() – This method called by the jQuery Ajax request to update the quantity of the cart item.
- Based on the rowid, update the item’s quantity using update() method of Cart class.
removeItem() – This method is used to delete the item from the cart.
- Based on the rowid, remove the item from cart using remove() method of Cart class.

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Cart extends CI_Controller{
    
    function  __construct(){
        parent::__construct();
        
        // Load cart library
        $this->load->library('cart');
        
        // Load product model
        $this->load->model('product');
    }
    
    function index(){
        $data = array();
        
        // Retrieve cart data from the session
        $data['cartItems'] = $this->cart->contents();
        
        // Load the cart view
        $this->load->view('cart/index', $data);
    }
    
    function updateItemQty(){
        $update = 0;
        
        // Get cart item info
        $rowid = $this->input->get('rowid');
        $qty = $this->input->get('qty');
        
        // Update item in the cart
        if(!empty($rowid) && !empty($qty)){
            $data = array(
                'rowid' => $rowid,
                'qty'   => $qty
            );
            $update = $this->cart->update($data);
        }
        
        // Return response
        echo $update?'ok':'err';
    }
    
    function removeItem($rowid){
        // Remove item from cart
        $remove = $this->cart->remove($rowid);
        
        // Redirect to the cart page
        redirect('cart/');
    }
    
}

3. Checkout.php
The Checkout controller handles the order submission process.

__construct() – Load form library & helper, cart library and product model.
index() –
- Redirect the user if the cart is empty.
- If the order request is submitted:
  - Validate the submitted form data with Form Validation library.
  - Insert the customer data in the database.
  - Insert order data in the database using placeOrder() function.
  - Redirect to the order success page.
- Retrieve cart data from the session using contents() method of Cart class.
- Pass cart content to view and load checkout view.
placeOrder() –
- Insert order information in the database.
- Retrieve cart contents and insert order items in the database.
- Remove all the items from the cart and destroy cart contents using destroy() method of Cart class.
orderSuccess() –
- Fetch the order data from the database.
- Pass order data to view and load order success view.

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Checkout extends CI_Controller{
    
    function  __construct(){
        parent::__construct();
        
        // Load form library & helper
        $this->load->library('form_validation');
        $this->load->helper('form');
        
        // Load cart library
        $this->load->library('cart');
        
        // Load product model
        $this->load->model('product');
        
        $this->controller = 'checkout';
    }
    
    function index(){
        // Redirect if the cart is empty
        if($this->cart->total_items() <= 0){
            redirect('products/');
        }
        
        $custData = $data = array();
        
        // If order request is submitted
        $submit = $this->input->post('placeOrder');
        if(isset($submit)){
            // Form field validation rules
            $this->form_validation->set_rules('name', 'Name', 'required');
            $this->form_validation->set_rules('email', 'Email', 'required|valid_email');
            $this->form_validation->set_rules('phone', 'Phone', 'required');
            $this->form_validation->set_rules('address', 'Address', 'required');
            
            // Prepare customer data
            $custData = array(
                'name'     => strip_tags($this->input->post('name')),
                'email'     => strip_tags($this->input->post('email')),
                'phone'     => strip_tags($this->input->post('phone')),
                'address'=> strip_tags($this->input->post('address'))
            );
            
            // Validate submitted form data
            if($this->form_validation->run() == true){
                // Insert customer data
                $insert = $this->product->insertCustomer($custData);
                
                // Check customer data insert status
                if($insert){
                    // Insert order
                    $order = $this->placeOrder($insert);
                    
                    // If the order submission is successful
                    if($order){
                        $this->session->set_userdata('success_msg', 'Order placed successfully.');
                        redirect($this->controller.'/orderSuccess/'.$order);
                    }else{
                        $data['error_msg'] = 'Order submission failed, please try again.';
                    }
                }else{
                    $data['error_msg'] = 'Some problems occured, please try again.';
                }
            }
        }
        
        // Customer data
        $data['custData'] = $custData;
        
        // Retrieve cart data from the session
        $data['cartItems'] = $this->cart->contents();
        
        // Pass products data to the view
        $this->load->view($this->controller.'/index', $data);
    }
    
    function placeOrder($custID){
        // Insert order data
        $ordData = array(
            'customer_id' => $custID,
            'grand_total' => $this->cart->total()
        );
        $insertOrder = $this->product->insertOrder($ordData);
        
        if($insertOrder){
            // Retrieve cart data from the session
            $cartItems = $this->cart->contents();
            
            // Cart items
            $ordItemData = array();
            $i=0;
            foreach($cartItems as $item){
                $ordItemData[$i]['order_id']     = $insertOrder;
                $ordItemData[$i]['product_id']     = $item['id'];
                $ordItemData[$i]['quantity']     = $item['qty'];
                $ordItemData[$i]['sub_total']     = $item["subtotal"];
                $i++;
            }
            
            if(!empty($ordItemData)){
                // Insert order items
                $insertOrderItems = $this->product->insertOrderItems($ordItemData);
                
                if($insertOrderItems){
                    // Remove items from the cart
                    $this->cart->destroy();
                    
                    // Return order ID
                    return $insertOrder;
                }
            }
        }
        return false;
    }
    
    function orderSuccess($ordID){
        // Fetch order data from the database
        $data['order'] = $this->product->getOrder($ordID);
        
        // Load order details view
        $this->load->view($this->controller.'/order-success', $data);
    }
    
}

Model (Product.php)

The Product model handles the database related operations (Fetch and Insert).

__construct() – Specify the table name of the database.
getRows() – Fetch the products data from the database. Returns single record if ID specified, otherwise all records.
getOrder() – Fetch the order data from the orders table based on the ID.
insertCustomer() – Insert customer data in the customers table.
insertOrder() – Insert order information in the orders table.
insertOrderItems() – Insert order items data in the order_items table.

<?php
if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Product extends CI_Model{
    
    function __construct() {
        $this->proTable = 'products';
        $this->custTable = 'customers';
        $this->ordTable = 'orders';
        $this->ordItemsTable = 'order_items';
    }
    
    /*
     * Fetch products data from the database
     * @param id returns a single record if specified, otherwise all records
     */
    public function getRows($id = ''){
        $this->db->select('*');
        $this->db->from($this->proTable);
        $this->db->where('status', '1');
        if($id){
            $this->db->where('id', $id);
            $query = $this->db->get();
            $result = $query->row_array();
        }else{
            $this->db->order_by('name', 'asc');
            $query = $this->db->get();
            $result = $query->result_array();
        }
        
        // Return fetched data
        return !empty($result)?$result:false;
    }
    
    /*
     * Fetch order data from the database
     * @param id returns a single record of the specified ID
     */
    public function getOrder($id){
        $this->db->select('o.*, c.name, c.email, c.phone, c.address');
        $this->db->from($this->ordTable.' as o');
        $this->db->join($this->custTable.' as c', 'c.id = o.customer_id', 'left');
        $this->db->where('o.id', $id);
        $query = $this->db->get();
        $result = $query->row_array();
        
        // Get order items
        $this->db->select('i.*, p.image, p.name, p.price');
        $this->db->from($this->ordItemsTable.' as i');
        $this->db->join($this->proTable.' as p', 'p.id = i.product_id', 'left');
        $this->db->where('i.order_id', $id);
        $query2 = $this->db->get();
        $result['items'] = ($query2->num_rows() > 0)?$query2->result_array():array();
        
        // Return fetched data
        return !empty($result)?$result:false;
    }
    
    /*
     * Insert customer data in the database
     * @param data array
     */
    public function insertCustomer($data){
        // Add created and modified date if not included
        if(!array_key_exists("created", $data)){
            $data['created'] = date("Y-m-d H:i:s");
        }
        if(!array_key_exists("modified", $data)){
            $data['modified'] = date("Y-m-d H:i:s");
        }
        
        // Insert customer data
        $insert = $this->db->insert($this->custTable, $data);

        // Return the status
        return $insert?$this->db->insert_id():false;
    }
    
    /*
     * Insert order data in the database
     * @param data array
     */
    public function insertOrder($data){
        // Add created and modified date if not included
        if(!array_key_exists("created", $data)){
            $data['created'] = date("Y-m-d H:i:s");
        }
        if(!array_key_exists("modified", $data)){
            $data['modified'] = date("Y-m-d H:i:s");
        }
        
        // Insert order data
        $insert = $this->db->insert($this->ordTable, $data);

        // Return the status
        return $insert?$this->db->insert_id():false;
    }
    
    /*
     * Insert order items data in the database
     * @param data array
     */
    public function insertOrderItems($data = array()) {
        
        // Insert order items
        $insert = $this->db->insert_batch($this->ordItemsTable, $data);

        // Return the status
        return $insert?true:false;
    }
    
}

Views

1. products/index.php:
The products are listed with Add to Cart button. Also, the total number of items of the cart is shown using total_items() method of Cart library.

<h2>PRODUCTS</h2>
	
<!-- Cart basket -->
<div class="cart-view">
    <a href="<?php echo base_url('cart'); ?>" title="View Cart"><i class="icart"></i> (<?php echo ($this->cart->total_items() > 0)?$this->cart->total_items().' Items':'Empty'; ?>)</a>
</div>

<!-- List all products -->
<div class="row col-lg-12">
    <?php if(!empty($products)){ foreach($products as $row){ ?>
        <div class="card col-lg-3">
            <img class="card-img-top" src="<?php echo base_url('uploads/product_images/'.$row['image']); ?>" alt="">
            <div class="card-body">
                <h5 class="card-title"><?php echo $row["name"]; ?></h5>
                <h6 class="card-subtitle mb-2 text-muted">Price: <?php echo '$'.$row["price"].' USD'; ?></h6>
                <p class="card-text"><?php echo $row["description"]; ?></p>
                <a href="<?php echo base_url('products/addToCart/'.$row['id']); ?>" class="btn btn-primary">Add to Cart</a>
            </div>
        </div>
    <?php } }else{ ?>
        <p>Product(s) not found...</p>
    <?php } ?>
</div>

2. cart/index.php:
This view displays the shopping cart with products and price details.

The cart items are listed with the product info (image, name, price, etc), quantity, subtotal, and grand total.
Two buttons are provided:
- Continue Shopping – Allows adding more item to the cart.
- Checkout – Allows checkout from the cart and preview the order.
The user can update the quantity and delete the cart item.
The updateCartItem() function initiate an Ajax request to update the quantity of the item using jQuery. The rowid and quantity are sent via Ajax to the updateItemQty() method of Cart controller.

<!-- Include jQuery library -->
<script src="<?php echo base_url('assets/js/jquery.min.js'); ?>"></script>

<script>
// Update item quantity
function updateCartItem(obj, rowid){
    $.get("<?php echo base_url('cart/updateItemQty/'); ?>", {rowid:rowid, qty:obj.value}, function(resp){
        if(resp == 'ok'){
            location.reload();
        }else{
            alert('Cart update failed, please try again.');
        }
    });
}
</script>

<h1>SHOPPING CART</h1>
<table class="table table-striped">
<thead>
    <tr>
        <th width="10%"></th>
        <th width="30%">Product</th>
        <th width="15%">Price</th>
        <th width="13%">Quantity</th>
        <th width="20%" class="text-right">Subtotal</th>
        <th width="12%"></th>
    </tr>
</thead>
<tbody>
    <?php if($this->cart->total_items() > 0){ foreach($cartItems as $item){    ?>
    <tr>
        <td>
            <?php $imageURL = !empty($item["image"])?base_url('uploads/product_images/'.$item["image"]):base_url('assets/images/pro-demo-img.jpeg'); ?>
            <img src="<?php echo $imageURL; ?>" width="50"/>
        </td>
        <td><?php echo $item["name"]; ?></td>
        <td><?php echo '$'.$item["price"].' USD'; ?></td>
        <td><input type="number" class="form-control text-center" value="<?php echo $item["qty"]; ?>" onchange="updateCartItem(this, '<?php echo $item["rowid"]; ?>')"></td>
        <td class="text-right"><?php echo '$'.$item["subtotal"].' USD'; ?></td>
        <td class="text-right"><button class="btn btn-sm btn-danger" onclick="return confirm('Are you sure to delete item?')?window.location.href='<?php echo base_url('cart/removeItem/'.$item["rowid"]); ?>':false;"><i class="itrash"></i> </button> </td>
    </tr>
    <?php } }else{ ?>
    <tr><td colspan="6"><p>Your cart is empty.....</p></td>
    <?php } ?>
    <?php if($this->cart->total_items() > 0){ ?>
    <tr>
        <td></td>
        <td></td>
        <td></td>
        <td><strong>Cart Total</strong></td>
        <td class="text-right"><strong><?php echo '$'.$this->cart->total().' USD'; ?></strong></td>
        <td></td>
    </tr>
    <?php } ?>
</tbody>
</table>

3. checkout/:
3.1. index.php
This view displays the preview of the order before submission.

The preview is displayed before place the order.
An HTML form with some input fields is displayed under the order preview to provide the shipping information (name, email, phone, and address).
The validation and pre-filled data render feature is added to the form.
The Place Order button allows submitting the order.

<h1>CHECKOUT</h1>
<div class="checkout">
    <div class="row">
        <?php if(!empty($error_msg)){ ?>
        <div class="col-md-12">
            <div class="alert alert-danger"><?php echo $error_msg; ?></div>
        </div>
        <?php } ?>
		
        <div class="col-md-4 order-md-2 mb-4">
            <h4 class="d-flex justify-content-between align-items-center mb-3">
                <span class="text-muted">Your Cart</span>
                <span class="badge badge-secondary badge-pill"><?php echo $this->cart->total_items(); ?></span>
            </h4>
            <ul class="list-group mb-3">
                <?php if($this->cart->total_items() > 0){ foreach($cartItems as $item){ ?>
                <li class="list-group-item d-flex justify-content-between lh-condensed">
                    <div>
                        <?php $imageURL = !empty($item["image"])?base_url('uploads/product_images/'.$item["image"]):base_url('assets/images/pro-demo-img.jpeg'); ?>
                        <img src="<?php echo $imageURL; ?>" width="75"/>
                        <h6 class="my-0"><?php echo $item["name"]; ?></h6>
                        <small class="text-muted"><?php echo '$'.$item["price"]; ?>(<?php echo $item["qty"]; ?>)</small>
                    </div>
                    <span class="text-muted"><?php echo '$'.$item["subtotal"]; ?></span>
                </li>
				            <?php } }else{ ?>
                <li class="list-group-item d-flex justify-content-between lh-condensed">
                    <p>No items in your cart...</p>
                </li>
                <?php } ?>
                <li class="list-group-item d-flex justify-content-between">
                    <span>Total (USD)</span>
                    <strong><?php echo '$'.$this->cart->total(); ?></strong>
                </li>
            </ul>
            <a href="<?php echo base_url('products/'); ?>" class="btn btn-block btn-info">Add Items</a>
        </div>
        <div class="col-md-8 order-md-1">
            <h4 class="mb-3">Contact Details</h4>
            <form method="post">
                <div class="mb-3">
                    <label for="name">Name</label>
                    <input type="text" class="form-control" name="name" value="<?php echo !empty($custData['name'])?$custData['name']:''; ?>" placeholder="Enter name" required>
                    <?php echo form_error('name','<p class="help-block error">','</p>'); ?>
                </div>
                <div class="mb-3">
                    <label for="email">Email</label>
                    <input type="email" class="form-control" name="email" value="<?php echo !empty($custData['email'])?$custData['email']:''; ?>" placeholder="Enter email" required>
                    <?php echo form_error('email','<p class="help-block error">','</p>'); ?>
                </div>
                <div class="mb-3">
                    <label for="phone">Phone</label>
                    <input type="text" class="form-control" name="phone" value="<?php echo !empty($custData['phone'])?$custData['phone']:''; ?>" placeholder="Enter contact no" required>
                    <?php echo form_error('phone','<p class="help-block error">','</p>'); ?>
                </div>
                <div class="mb-3">
                    <label for="address">Address</label>
                    <input type="text" class="form-control" name="address" value="<?php echo !empty($custData['address'])?$custData['address']:''; ?>" placeholder="Enter address" required>
                    <?php echo form_error('address','<p class="help-block error">','</p>'); ?>
                </div>
                <input class="btn btn-success btn-lg btn-block" type="submit" name="placeOrder" value="Place Order">
            </form>
        </div>
    </div>
</div>

3.2. order-success.php
If the order submission is successful, the status is shown with the order details.

<h1>ORDER STATUS</h1>
<?php if(!empty($order)){ ?>
    <div class="col-md-12">
        <div class="alert alert-success">Your order has been placed successfully.</div>
    </div>
	
    <!-- Order status & shipping info -->
    <div class="row col-lg-12 ord-addr-info">
        <div class="hdr">Order Info</div>
        <p><b>Reference ID:</b> #<?php echo $order['id']; ?></p>
        <p><b>Total:</b> <?php echo '$'.$order['grand_total'].' USD'; ?></p>
        <p><b>Placed On:</b> <?php echo $order['created']; ?></p>
        <p><b>Buyer Name:</b> <?php echo $order['name']; ?></p>
        <p><b>Email:</b> <?php echo $order['email']; ?></p>
        <p><b>Phone:</b> <?php echo $order['phone']; ?></p>
    </div>
	
    <!-- Order items -->
    <div class="row col-lg-12">
        <table class="table table-hover">
            <thead>
                <tr>
                    <th></th>
                    <th>Product</th>
                    <th>Price</th>
                    <th>QTY</th>
                    <th>Sub Total</th>
                </tr>
            </thead>
            <tbody>
                <?php 
                if(!empty($order['items'])){  
                    foreach($order['items'] as $item){ 
                ?>
                <tr>
                    <td>
                        <?php $imageURL = !empty($item["image"])?base_url('uploads/product_images/'.$item["image"]):base_url('assets/images/pro-demo-img.jpeg'); ?>
                        <img src="<?php echo $imageURL; ?>" width="75"/>
                    </td>
                    <td><?php echo $item["name"]; ?></td>
                    <td><?php echo '$'.$item["price"].' USD'; ?></td>
                    <td><?php echo $item["quantity"]; ?></td>
                    <td><?php echo '$'.$item["sub_total"].' USD'; ?></td>
                </tr>
                <?php } 
                } ?>
            </tbody>
        </table>
    </div>
<?php } }else{ ?>
<div class="col-md-12">
    <div class="alert alert-danger">Your order submission failed.</div>
</div>
<?php } ?>

PayPal Payment Gateway Integration in CodeIgniter

Conclusion

We have tried to cover the entire process to implement shopping cart functionality in the CodeIgniter application. You can easily enhance this script and integrate advanced functionality as per your needs. Our example code allows you to add shopping cart instantly in CodeIgniter framework. In this example, Bootstrap library is used to style the view of the product list, shopping cart, checkout, and order.

Do you want to get implementation help, or enhance the functionality of this script? Click here to Submit Service Request

Download Source Code

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3 Comments

Sami Said...

Hello and thank you for this awesome tutorial

one thing i am trying to achieve is to not refresh the page with reload but instead by using ajax and update only the current view.

I have not been able to achieve that yet.

Your guidance will be appreciated.

Thank you

August 30, 2022 at 9:07 PM
Oliver Said...

Nice example and easy to understand. Thank you.
I will change the way the orders are retrieved for the success page in checkout controller, because visitors can supply any order number and view others people orders in the current implementation.

September 25, 2020 at 7:32 AM
Bahareh Said...

Thank you for this code.
your training has helped me a lot.

June 28, 2020 at 7:28 AM

Shopping Cart Implementation in CodeIgniter

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