Code generation for the order management function in the PHP inventory management system

Code generation for the order management function in the PHP inventory management system

In the inventory management system, the order management function is a crucial part. Through the order management function, we can track and manage customer orders and make corresponding inventory adjustments. In this article, we will introduce how to use PHP to implement a simple order management function and provide corresponding code examples.

First, we need to create a database table for order management. We can use MySQL or other relational databases to store order information. The following is an example of an order management table:

CREATE TABLE orders (
    id INT(11) AUTO_INCREMENT PRIMARY KEY,
    customer_name VARCHAR(255) NOT NULL,
    order_date DATETIME NOT NULL,
    total_amount DECIMAL(10, 2) NOT NULL
);

In our PHP code, we need to connect to the database and provide the corresponding CRUD (Create, Read, Update, Delete) operations.

First, we will write a function to insert a new order record:

function insertOrder($customer_name, $order_date, $total_amount) {
    $conn = new mysqli("localhost", "username", "password", "dbname");
    
    if ($conn->connect_error) {
        die("连接数据库失败：" . $conn->connect_error);
    }
    
    $sql = "INSERT INTO orders (customer_name, order_date, total_amount) VALUES ('$customer_name', '$order_date', $total_amount)";
    
    if ($conn->query($sql) === TRUE) {
        echo "订单已成功插入.";
    } else {
        echo "插入订单失败: " . $conn->error;
    }
    
    $conn->close();
}

Next, we will create a function to get the order list:

function getOrders() {
    $conn = new mysqli("localhost", "username", "password", "dbname");
    
    if ($conn->connect_error) {
        die("连接数据库失败：" . $conn->connect_error);
    }
    
    $sql = "SELECT * FROM orders";
    
    $result = $conn->query($sql);
    
    if ($result->num_rows > 0) {
        while ($row = $result->fetch_assoc()) {
            echo "订单ID: " . $row["id"]. " - 客户姓名: " . $row["customer_name"]. " - 订单日期: " . $row["order_date"]. " - 总金额: " . $row["total_amount"]. "<br>";
        }
    } else {
        echo "没有订单记录.";
    }
    
    $conn->close();
}

We also need Write functions to update and delete order records. The following is the corresponding sample code:

function updateOrder($order_id, $total_amount) {
    $conn = new mysqli("localhost", "username", "password", "dbname");
    
    if ($conn->connect_error) {
        die("连接数据库失败：" . $conn->connect_error);
    }
    
    $sql = "UPDATE orders SET total_amount = $total_amount WHERE id = $order_id";
    
    if ($conn->query($sql) === TRUE) {
        echo "订单已成功更新.";
    } else {
        echo "更新订单失败: " . $conn->error;
    }
    
    $conn->close();
}

function deleteOrder($order_id) {
    $conn = new mysqli("localhost", "username", "password", "dbname");
    
    if ($conn->connect_error) {
        die("连接数据库失败：" . $conn->connect_error);
    }
    
    $sql = "DELETE FROM orders WHERE id = $order_id";
    
    if ($conn->query($sql) === TRUE) {
        echo "订单已成功删除.";
    } else {
        echo "删除订单失败: " . $conn->error;
    }
    
    $conn->close();
}

Now, we have completed the code generation for the order management function. We can insert new orders, obtain order lists, update order records, and delete orders by calling the corresponding functions.

Summary: In this article, we introduced how to use PHP to implement a simple order management function and provided relevant code examples. Through these codes, we can easily add, delete, modify and check orders and effectively manage our inventory.

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