78 lines
2.6 KiB
PHP
78 lines
2.6 KiB
PHP
<?php
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session_start();
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require_once 'db/config.php';
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// Initialize cart if it doesn't exist
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if (!isset($_SESSION['cart'])) {
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$_SESSION['cart'] = [];
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}
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// Get POST data
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$product_id = filter_input(INPUT_POST, 'product_id', FILTER_VALIDATE_INT);
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$quantity = filter_input(INPUT_POST, 'quantity', FILTER_VALIDATE_INT);
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$color = filter_input(INPUT_POST, 'product_color', FILTER_SANITIZE_STRING);
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$action = filter_input(INPUT_POST, 'action', FILTER_SANITIZE_STRING);
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if (!$action || !$product_id) {
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header('Location: shop.php');
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exit;
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}
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// Generate a unique ID for the cart item based on product ID and color
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$cart_item_id = $product_id . ($color ? '_' . str_replace('#', '', $color) : '');
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switch ($action) {
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case 'add':
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if ($quantity > 0) {
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// Check if product exists and get details
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try {
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$pdo = db();
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$stmt = $pdo->prepare("SELECT name, price, image_url FROM products WHERE id = ?");
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$stmt->execute([$product_id]);
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$product = $stmt->fetch(PDO::FETCH_ASSOC);
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if ($product) {
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// If item already in cart, update quantity
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if (isset($_SESSION['cart'][$cart_item_id])) {
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$_SESSION['cart'][$cart_item_id]['quantity'] += $quantity;
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} else {
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// Otherwise, add new item
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$_SESSION['cart'][$cart_item_id] = [
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'product_id' => $product_id,
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'name' => $product['name'],
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'price' => $product['price'],
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'image_url' => $product['image_url'],
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'quantity' => $quantity,
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'color' => $color
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];
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}
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}
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} catch (PDOException $e) {
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// Log error, maybe set a session error message to display in cart
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error_log("Cart Add Error: " . $e->getMessage());
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}
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}
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break;
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case 'update':
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if ($quantity > 0) {
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if (isset($_SESSION['cart'][$cart_item_id])) {
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$_SESSION['cart'][$cart_item_id]['quantity'] = $quantity;
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}
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} else {
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// If quantity is 0 or less, remove the item
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unset($_SESSION['cart'][$cart_item_id]);
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}
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break;
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case 'remove':
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if (isset($_SESSION['cart'][$cart_item_id])) {
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unset($_SESSION['cart'][$cart_item_id]);
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}
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break;
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}
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// Redirect back to the cart page to show changes
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header('Location: cart.php');
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exit;
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