The same user. Adding one item every second. A bot.
Soon, word spread in the dev forums. "Did you use the patch?" they would ask. It became the silent engine behind a thousand successful storefronts, proving that even a single file of code, if crafted with enough care, can change the way the world shops. addcartphp num high quality
// After login check if ($num > 0 && $num <= $product['stock_quantity']) $stmt = $pdo->prepare(" INSERT INTO cart_items (user_id, product_id, quantity) VALUES (?, ?, ?) ON DUPLICATE KEY UPDATE quantity = quantity + ? "); $stmt->execute([$_SESSION['user_id'], $product_id, $num, $num]); // Validate final quantity does not exceed stock $check = $pdo->prepare(" SELECT ci.quantity, p.stock_quantity FROM cart_items ci JOIN products p ON ci.product_id = p.id WHERE ci.user_id = ? AND ci.product_id = ? "); $check->execute([$_SESSION['user_id'], $product_id]); $row = $check->fetch(); if ($row['quantity'] > $row['stock_quantity']) // Rollback $pdo->prepare("UPDATE cart_items SET quantity = ? WHERE user_id = ? AND product_id = ?") ->execute([$row['stock_quantity'], $_SESSION['user_id'], $product_id]); die(json_encode(['error' => 'Adjusted to max stock'])); The same user
if (!empty($_SESSION['cart'])) $ids = array_keys($_SESSION['cart']); $placeholders = implode(',', array_fill(0, count($ids), '?')); $stmt = $pdo->prepare("SELECT id, name, price, stock_quantity FROM products WHERE id IN ($placeholders)"); $stmt->execute($ids); $products = $stmt->fetchAll(PDO::FETCH_ASSOC); Soon, word spread in the dev forums
Best for small stores or guest users. Data is stored in the $_SESSION global array, allowing for rapid development without immediate database overhead.
It sounds like you're asking for a related to a high number of addtocart (or addcart ) PHP requests that are high-quality (e.g., valid, non-bot, conversion-rich).
Addcartphp has been used in a variety of real-world applications, from small e-commerce startups to large enterprise deployments. Here are a few examples: