How to use the PHP framework CodeIgniter to quickly build a backend management system

In today's Internet era, a website that is loved by users must have a simple and clear front-end interface and a powerful back-end management system, and the PHP framework CodeIgniter is an excellent framework that allows developers to quickly build a back-end management system. .

CodeIgniter has the characteristics of lightweight, high efficiency, and easy expansion. This article will be aimed at beginners and explain in detail how to quickly build a backend management system through this framework.

1. Installation and configuration

1. Installing PHP

CodeIgniter is a PHP-based framework, so PHP needs to be installed on the server first.

2. Download CodeIgniter

CodeIgniter official website provides multiple versions of the framework, including the stable version and the official development version, which we can download as needed. After downloading, unzip the entire unzipped package to any folder, which is the root directory of our CodeIgniter project.

3. Server configuration

CodeIgniter requires the support of a web server to run. We can choose common servers such as Apache and Nginx to build it.

4. Configuring CodeIgniter

In the root directory of CodeIgniter, find the config.php file in the application/config directory and change the value of $config['base_url'] Change it to the address of your project. At the same time, we can perform a series of configurations for database, language, time zone, etc.

2. Page template

CodeIgniter adopts the MVC design pattern of PHP, so we need to prepare the view of the project.

1. Create Controller

Through CodeIgniter's controller, we can handle the logic of the program and pass the data to the view layer for rendering. In the application/controllers directory, we can create our controller.

2. Create view files

In the application/views directory, we can design our own HTML view interface and dynamically generate web pages through the template system.

3. Processing data

In the model layer, we can process and manage the data, transfer the data to the model layer through the controller layer for logical processing, and then process the data The data is passed to the view layer for rendering.

3. Backend management system implementation

1. Backend management system authorization verification

We need to define a login page in the controller and input to the user account password for verification. If the verification fails, we will jump to the login page; if the verification passes, we will redirect to the backend home page.

2. Backend management system directory structure

We can create the controllers, template files, and models required for the backend management system in the three directories of Controller, Model, and View. wait.

• 2.1 Controller:

Controllers/Admin/Welcome.php

Controllers/Admin/Article.php

Controllers/ Admin/Login.php

• 2.2 Views:

Views/Admin/index.php

Views/Admin/login.php

Views/Admin/layout/header.php

Views/Admin/layout/footer.php

• 2.3 Model:

Models/Article_model .php

Models/User_model.php

3. Backend management system functions

• 3.1 User management: add, modify, and delete user information.
• 3.2 Article management: add, modify, and delete article information.
• 3.3 Setting functions: such as site name, SEO, administrator password, etc.

4. Summary

CodeIgniter is lightweight, easy to expand, simple and easy to use, so more and more developers choose to use it. This article briefly introduces how to quickly build a backend management system, hoping to help beginners.

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