PHP 재고 관리 시스템의 재고 경고 기능을 위한 코드 생성

CREATE TABLE `inventory` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `product_name` varchar(50) NOT NULL,
  `quantity` int(11) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

INSERT INTO `inventory` (`product_name`, `quantity`) VALUES
('商品A', 10),
('商品B', 5),
('商品C', 15);

<?php
// 连接数据库
$servername = "localhost";
$username = "root";
$password = "your_password";
$dbname = "inventory_management";

$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

// 获取库存信息
$sql = "SELECT * FROM inventory";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    while ($row = $result->fetch_assoc()) {
        $product_name = $row['product_name'];
        $quantity = $row['quantity'];

        // 检查库存数量是否低于阈值
        if ($quantity < 10) {
            sendAlert($product_name, $quantity);
        }
    }
} else {
    echo "暂无库存信息";
}

// 发送警报通知
function sendAlert($product_name, $quantity)
{
    // 根据实际需求实现发送警报的逻辑，可以是邮件、短信、推送等方式
    echo "商品{$product_name}的库存低于设定阈值，当前数量为{$quantity}，请及时处理。";
}

// 关闭数据库连接
$conn->close();
?>