0) {
if (isset($_SESSION['cart'][$product_id])) {
$_SESSION['cart'][$product_id] += $quantity;
} else {
$_SESSION['cart'][$product_id] = $quantity;
}
}
}
header('Location: products.php');
exit;
case 'update':
if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['quantities'])) {
foreach ($_POST['quantities'] as $product_id => $quantity) {
$quantity = (int)$quantity;
if ($quantity > 0) {
$_SESSION['cart'][$product_id] = $quantity;
} else {
unset($_SESSION['cart'][$product_id]);
}
}
}
header('Location: cart.php');
exit;
case 'place_order':
if ($_SERVER['REQUEST_METHOD'] === 'POST' && !empty($_SESSION['cart'])) {
$total_amount = 0;
$cart_products = [];
$product_ids = array_keys($_SESSION['cart']);
if (empty($product_ids)) {
header('Location: cart.php');
exit;
}
$sql = "SELECT * FROM products WHERE id IN (" . implode(',', array_fill(0, count($product_ids), '?')) . ")";
$stmt = $pdo->prepare($sql);
$stmt->execute($product_ids);
$products_array = $stmt->fetchAll(PDO::FETCH_ASSOC);
$products = [];
foreach ($products_array as $product) {
$products[$product['id']] = $product;
}
// Debug: Dump products array
// var_dump($products);
foreach ($_SESSION['cart'] as $product_id => $quantity) {
if (isset($products[$product_id])) {
$product = $products[$product_id];
$price = $product['price'] ?? 0;
$total_amount += $price * $quantity;
$cart_products[] = ['product' => $product, 'quantity' => $quantity];
}
}
// Debug: Dump total amount
// var_dump($total_amount);
if ($total_amount > 0) {
$pdo->beginTransaction();
try {
$sql = 'INSERT INTO orders (user_id, total_amount, status) VALUES (?, ?, ?)';
$stmt = $pdo->prepare($sql);
$stmt->execute([$_SESSION['user_id'], $total_amount, 'Pending']);
$order_id = $pdo->lastInsertId();
$sql = 'INSERT INTO order_items (order_id, product_id, quantity, price) VALUES (?, ?, ?, ?)';
$stmt = $pdo->prepare($sql);
foreach ($cart_products as $item) {
// Use the price from the database, not the one from the session/cart loop
$product_price = $products[$item['product']['id']]['price'] ?? 0;
$stmt->execute([$order_id, $item['product']['id'], $item['quantity'], $product_price]);
}
$pdo->commit();
$_SESSION['cart'] = [];
header('Location: order_details.php?id=' . $order_id);
exit;
} catch (Exception $e) {
$pdo->rollBack();
// Debug: Log exception
error_log($e->getMessage());
header('Location: cart.php?error=place_order_failed');
exit;
}
} else {
header('Location: cart.php?error=zero_total');
exit;
}
}
header('Location: cart.php');
exit;
}
// Display Cart
$cart_items = [];
$total_price = 0;
if (!empty($_SESSION['cart'])) {
$product_ids = array_keys($_SESSION['cart']);
$sql = "SELECT * FROM products WHERE id IN (" . implode(',', array_fill(0, count($product_ids), '?')) . ")";
$stmt = $pdo->prepare($sql);
$stmt->execute($product_ids);
$products = $stmt->fetchAll();
foreach ($products as $product) {
$product_id = $product['id'];
$quantity = $_SESSION['cart'][$product_id];
$price = $product['price'] ?? 0;
$cart_items[] = ['product' => $product, 'quantity' => $quantity, 'price' => $price];
$total_price += $price * $quantity;
}
}
?>
Shopping Cart
Your cart is empty.