Backend DevelopmentPHP TutorialPHP development skills: How to implement background management functionsPHP development skills: How to implement background management functions
PHP development skills: How to implement backend management functions
Introduction:
With the rapid development of the Internet, various websites and applications have become part of people’s daily lives. part. In these websites and applications, background management functions play a vital role. They provide management and operation of data so that the websites and applications can run normally. This article will introduce how to use PHP development skills to implement a basic backend management function and provide code examples.
1. Design the database
Before starting to develop the backend management function, you first need to design the database. Determine the data tables and fields that need to be stored, and establish corresponding relationships. The following is a simple example:
User table (user):
- User ID (id): primary key, auto-increment
- Username (username): Unique, used to log in
- Password (password): Encrypted storage
- Name (name)
- Email (email)
- Mobile phone number (phone)
Order table (order):
- Order ID (id): primary key, auto-increment
- User ID (user_id): foreign key, association User table
- Order number (order_number): unique
- Order time (order_time)
- Order status (status)
2. Create Login page
Backend management functions usually require login to access, so a login page needs to be created. The login page includes username and password input boxes and a login button. When the user clicks the login button, the PHP code can be used to verify whether the user name and password entered by the user are correct and handle them accordingly.
Code example:
<?php
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
$username = $_POST['username'];
$password = $_POST['password'];
// 根据输入的用户名查询数据库，验证密码是否正确
// ...
// 验证通过，跳转到后台首页
header('Location: admin.php');
exit;
}
?>
<html>
<body>
<h2 id="后台管理登录">后台管理登录</h2>
<form method="POST" action="">
<label for="username">用户名：</label>
<input type="text" id="username" name="username" required><br>
<label for="password">密码：</label>
<input type="password" id="password" name="password" required><br>
<input type="submit" value="登录">
</form>
</body>
</html>3. Create the backend homepage
After successful login, the user will enter the backend management homepage. The backend home page usually includes links to some commonly used functions, such as user management, order management, etc. Users can click these links to enter the corresponding management page.
Code example:
<?php
session_start();
// 判断用户是否已登录，如果未登录则跳转到登录页面
if (!isset($_SESSION['username'])) {
header('Location: login.php');
exit;
}
?>
<html>
<body>
<h2 id="后台管理首页">后台管理首页</h2>
<ul>
<li><a href="user.php">用户管理</a></li>
<li><a href="order.php">订单管理</a></li>
<!-- 其他功能链接 -->
</ul>
<a href="logout.php">退出登录</a>
</body>
</html>4. Create a management page
According to the link on the background homepage, we can create the corresponding management page. Taking user management as an example, the user management page can display a user list and provide the functions of adding users, editing users, and deleting users.
Code example:
<?php
session_start();
// 判断用户是否已登录，如果未登录则跳转到登录页面
if (!isset($_SESSION['username'])) {
header('Location: login.php');
exit;
}
// 查询数据库获取用户列表
// ...
// 处理用户删除操作
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
$userId = $_POST['id'];
// 根据用户ID删除用户
// ...
header('Location: user.php');
exit;
}
?>
<html>
<body>
<h2 id="用户管理">用户管理</h2>
<table>
<tr>
<th>ID</th>
<th>用户名</th>
<th>姓名</th>
<th>电子邮件</th>
<th>手机号码</th>
<th>操作</th>
</tr>
<?php foreach ($users as $user): ?>
<tr>
<td><?php echo $user['id']; ?></td>
<td><?php echo $user['username']; ?></td>
<td><?php echo $user['name']; ?></td>
<td><?php echo $user['email']; ?></td>
<td><?php echo $user['phone']; ?></td>
<td>
<a href="edit_user.php?id=<?php echo $user['id']; ?>">编辑</a>
<form method="POST" action="">
<input type="hidden" name="id" value="<?php echo $user['id']; ?>">
<input type="submit" value="删除">
</form>
</td>
</tr>
<?php endforeach; ?>
</table>
<a href="add_user.php">新增用户</a>
</body>
</html>Summary:
Through the above code example, we can see how to use PHP development skills to implement a simple background management function. This is just a basic example, actual development may involve more complex functions and logic. But through good database design and reasonable code structure, we can better develop a powerful and easy-to-use backend management system.
The above is the detailed content of PHP development skills: How to implement background management functions. For more information, please follow other related articles on the PHP Chinese website!
The Continued Use of PHP: Reasons for Its EnduranceApr 19, 2025 am 12:23 AMWhat’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.
PHP and Python: Exploring Their Similarities and DifferencesApr 19, 2025 am 12:21 AMPHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.
PHP and Python: Different Paradigms ExplainedApr 18, 2025 am 12:26 AMPHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.
PHP and Python: A Deep Dive into Their HistoryApr 18, 2025 am 12:25 AMPHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.
Choosing Between PHP and Python: A GuideApr 18, 2025 am 12:24 AMPHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.
PHP and Frameworks: Modernizing the LanguageApr 18, 2025 am 12:14 AMPHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.
PHP's Impact: Web Development and BeyondApr 18, 2025 am 12:10 AMPHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip
How does PHP type hinting work, including scalar types, return types, union types, and nullable types?Apr 17, 2025 am 12:25 AMPHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),
VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft
EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function
MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.
SublimeText3 Chinese version
Chinese version, very easy to use
