i have created a cart in php, which will add item to the cart when the user clicks the add to cart button redirecting the user to the carts page. the cart is adding 1 product multiple times, but when i add another product, its increasing the quantity of the old product in cart instead of diplaying 2 products. below is my cart.php page
<?php
// Start Session
session_start();
// Application library ( with ShopingCart class )
require __DIR__ . '/library.php';
$app = new ShopingCart();
if(isset($_POST['add_to_cart']))
{
$app->addToCart($_POST['id']);
}
if (isset($_GET['id_to_remove']) && isset($_GET['id_to_remove']) != '') {
$app->removeProductFromCart($_GET['id_to_remove']);
}
?>
<?php
if(isset($_SESSION['shopping_cart']) && count($_SESSION['shopping_cart']) > 0)
{
$entertainment = $_SESSION['shopping_cart'];
echo '
<table class="table table-hover table-bordered">
<thead>
<tr>
<th scope="col">#</th>
<th scope="col">Title</th>
<th scope="col">Quantity</th>
<th scope="col">Price</th>
<th scope="col" width="100">Action</th>
</tr>
</thead>';
$item_number = 1;
$total = 0;
foreach ($entertainment as $product) {
echo '
<tbody>
<tr>
<th scope="row">'. $item_number .'</th>
<td>' . $product['title'] . '</td>
<td>'.$product['quantity'].'</td>
<td>₹ '. $product['price']. '</td>
<td>
<a href="cart.php?id_to_remove=' . $item_number . '" class="btn btn-danger btn-sm">X</a>
</td>
</tr>
</tbody>
';
$total += ((int)$product['price'] * $product['quantity']);
$item_number++;
}
echo '
<tr>
<th colspan="4" align="right">
Total:
</th>
<td>
₹ '. $total .'
</td>
</tr>
</table>';
}
else {
echo '<div class="alert alert-primary" role="alert">
Shopping cart is empty, visit <a href="index.php" class="alert-link">products</a> page to add product into shopping cart.
</div>';
}
?>below is my library.php
<?php
// load database connection script
include("database_connection.php");
/*
* Tutorial: PHP MySQL Shopping cart
*
* Page: Application library
* */
class ShopingCart
{
protected $db;
function __construct()
{
$this->db = DB();
}
/**
* get products list
*
* @return array
*/
public function getProducts()
{
$query = "SELECT * FROM `entertainment`";
if (!$result = mysqli_query($this->db, $query)) {
exit(mysqli_error($this->db));
}
$data = [];
if (mysqli_num_rows($result) > 0) {
while ($row = mysqli_fetch_assoc($result)) {
$data[] = $row;
}
}
return $data;
}
/**
* get given product details
*
* @param [integer] $id
* @return array
*/
public function getProductDetails($id)
{
$id = mysqli_real_escape_string($this->db, $id);
$query = "SELECT * FROM `entertainment` WHERE `id` = '$id'";
if (!$result = mysqli_query($this->db, $query)) {
exit(mysqli_error($this->db));
}
$data = [];
if (mysqli_num_rows($result) > 0) {
while ($row = mysqli_fetch_assoc($result)) {
$data['id'] = $row['id'];
$data['title'] = $row['title'];
$data['price'] = $row['vendor_price'];
$data['quantity'] = 1;
}
}
return $data;
}
/**
* Add new product into the cart
*
* @param [integer] $id
* @return void
*/
public function addToCart($id)
{
$product = $this->getProductDetails($id);
$isFound = false;
$i = 0;
if (!isset($_SESSION['shopping_cart']) || count($_SESSION['shopping_cart']) < 1)
{
$_SESSION['shopping_cart'] = array(0 => $product);
} else {
foreach ($_SESSION['shopping_cart'] as $item) {
$i++;
foreach ($item as $key => $value) {
if ($key == "id" && $value == $id) {
array_splice($_SESSION['shopping_cart'], $i - 1, 1, array([
'id' => $item['id'],
'title' => $item['title'],
'price' => $item['vendor_price'],
'quantity' => $item['quantity'] + 1,
]));
$isFound = true;
}
}
}
if ($isFound == false) {
array_push($_SESSION['shopping_cart'], $product);
}
}
}
/**
* remove existing product from the cart
*
* @param [integer] $id
* @return void
*/
public function removeProductFromCart($id)
{
unset($_SESSION['shopping_cart'][$id - 1]);
}
}
?>one item is being added to the cart, and the 1 item can be added multiple times, but when i am trying to add different items, its not being added, instead the quantity of the previous item is being updated like below image
i need to list the items user clicks one below the other in cart. can anyone tell me how to do this? will be a great help
</div>
