How to use PHP to develop simple online ordering and delivery functions-PHP Tutorial-php.cn

Home

Backend Development

PHP Tutorial

How to use PHP to develop simple online ordering and delivery functions

PHPz

Sep 21, 2023 pm 04:18 PM

Convenient menu selection for usersPlace your order and pay.

How to use PHP to develop simple online ordering and delivery functions

With the rapid development of the Internet, people's lifestyles have also changed. More and more people are ordering food at home and want the convenience of having food delivered to their doorstep. In this article, I will introduce how to use PHP to develop a simple online ordering and delivery function. At the same time, I will provide specific code examples to help you better understand and practice.

Create database

First, we need to create a database to store the restaurant's menu and customer order information. In the MySQL database, we can use the following code to create a database named "restaurant":

CREATE DATABASE restaurant;

Next, we can create two tables to store menu and order information, the code example is as follows:

CREATE TABLE menu (
    id INT(11) AUTO_INCREMENT PRIMARY KEY,
    name VARCHAR(255) NOT NULL,
    price DECIMAL(10, 2) NOT NULL
);

CREATE TABLE orders (
    id INT(11) AUTO_INCREMENT PRIMARY KEY,
    customer_name VARCHAR(255) NOT NULL,
    customer_phone VARCHAR(15) NOT NULL,
    items TEXT NOT NULL,
    total_price DECIMAL(10, 2) NOT NULL,
    order_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

Create a web interface

Next, we need to create a web interface for customers to browse the menu and place orders. Here is a simple HTML template example:

<!doctype html>
<html>
<head>
    <title>在线点餐</title>
</head>
<body>
    <h1 id="菜单">菜单</h1>
    
    <ul>
        <?php
        // 连接数据库
        $conn = mysqli_connect("数据库地址", "用户名", "密码", "restaurant");
        
        // 查询菜单数据
        $query = "SELECT * FROM menu";
        $result = mysqli_query($conn, $query);
        
        // 遍历菜单并显示在页面上
        while ($row = mysqli_fetch_assoc($result)) {
            echo "<li>" . $row['name'] . " - ￥" . $row['price'] . "</li>";
        }
        ?>
    </ul>
    
    <h1 id="下单">下单</h1>
    
    <form method="post" action="place_order.php">
        <label>姓名：</label>
        <input type="text" name="customer_name" required><br>
        
        <label>电话：</label>
        <input type="text" name="customer_phone" required><br>
        
        <label>订单：</label>
        <textarea name="items" required></textarea><br>
        
        <button type="submit">提交订单</button>
    </form>
</body>
</html>

Processing orders

When a customer submits an order, we need to process the order and save the order information to the database. The following is a sample code for processing orders:

<?php
// 连接数据库
$conn = mysqli_connect("数据库地址", "用户名", "密码", "restaurant");

// 获取表单数据
$customer_name = $_POST['customer_name'];
$customer_phone = $_POST['customer_phone'];
$items = $_POST['items'];

// 计算订单总价
$query = "SELECT SUM(price) AS total_price FROM menu WHERE id IN ($items)";
$result = mysqli_query($conn, $query);
$row = mysqli_fetch_assoc($result);
$total_price = $row['total_price'];

// 保存订单信息到数据库
$query = "INSERT INTO orders (customer_name, customer_phone, items, total_price) VALUES ('$customer_name', '$customer_phone', '$items', '$total_price')";
mysqli_query($conn, $query);

// 提示用户下单成功
echo "下单成功！";

// 关闭数据库连接
mysqli_close($conn);
?>

Delivery order

When a new order is placed, we need a background service to process the order and deliver it food. This part can be developed according to specific needs and will not be elaborated here.

Summary:

Through the above steps, we can use PHP to develop a simple online ordering and delivery function. Customers can browse the menu and place their order, and the order information will be saved to the database. We also provide specific code examples to help you better understand and practice. Of course, there are many other functions and details that can be further improved and optimized and need to be developed according to actual needs.

I hope this article will be helpful to you, and I wish you good luck in developing online ordering and delivery functions using PHP!

The above is the detailed content of How to use PHP to develop simple online ordering and delivery functions. For more information, please follow other related articles on the PHP Chinese website!

Statement

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

PHP's Current Status: A Look at Web Development TrendsApr 13, 2025 am 12:20 AM

PHP remains important in modern web development, especially in content management and e-commerce platforms. 1) PHP has a rich ecosystem and strong framework support, such as Laravel and Symfony. 2) Performance optimization can be achieved through OPcache and Nginx. 3) PHP8.0 introduces JIT compiler to improve performance. 4) Cloud-native applications are deployed through Docker and Kubernetes to improve flexibility and scalability.

PHP vs. Other Languages: A ComparisonApr 13, 2025 am 12:19 AM

PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.

PHP vs. Python: Core Features and FunctionalityApr 13, 2025 am 12:16 AM

PHP and Python each have their own advantages and are suitable for different scenarios. 1.PHP is suitable for web development and provides built-in web servers and rich function libraries. 2. Python is suitable for data science and machine learning, with concise syntax and a powerful standard library. When choosing, it should be decided based on project requirements.

PHP: A Key Language for Web DevelopmentApr 13, 2025 am 12:08 AM

PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7

PHP: The Foundation of Many WebsitesApr 13, 2025 am 12:07 AM

The reasons why PHP is the preferred technology stack for many websites include its ease of use, strong community support, and widespread use. 1) Easy to learn and use, suitable for beginners. 2) Have a huge developer community and rich resources. 3) Widely used in WordPress, Drupal and other platforms. 4) Integrate tightly with web servers to simplify development deployment.

Beyond the Hype: Assessing PHP's Role TodayApr 12, 2025 am 12:17 AM

PHP remains a powerful and widely used tool in modern programming, especially in the field of web development. 1) PHP is easy to use and seamlessly integrated with databases, and is the first choice for many developers. 2) It supports dynamic content generation and object-oriented programming, suitable for quickly creating and maintaining websites. 3) PHP's performance can be improved by caching and optimizing database queries, and its extensive community and rich ecosystem make it still important in today's technology stack.

What are Weak References in PHP and when are they useful?Apr 12, 2025 am 12:13 AM

In PHP, weak references are implemented through the WeakReference class and will not prevent the garbage collector from reclaiming objects. Weak references are suitable for scenarios such as caching systems and event listeners. It should be noted that it cannot guarantee the survival of objects and that garbage collection may be delayed.

Explain the __invoke magic method in PHP.Apr 12, 2025 am 12:07 AM

The \_\_invoke method allows objects to be called like functions. 1. Define the \_\_invoke method so that the object can be called. 2. When using the $obj(...) syntax, PHP will execute the \_\_invoke method. 3. Suitable for scenarios such as logging and calculator, improving code flexibility and readability.

See all articles