<?php include 'connect.php'; if ($_SERVER["REQUEST_METHOD"] == "POST") { $name = $_POST['name']; $price = $_POST['price']; $stmt = $conn->prepare("INSERT INTO products (name, price) VALUES (?, ?)"); $stmt->execute([$name, $price]); echo "เพิ่มสินค้าสำเร็จ!"; header("Location: index.php"); } ?> <form method="post"> ชื่อสินค้า: <input type="text" name="name" required> ราคา: <input type="number" name="price" required> <button type="submit">เพิ่มสินค้า</button> </form>