1. Learning prerequisites

To learn ThinkPHP, you must first have basic knowledge of PHP, including HTML, CSS, JavaScript and other related knowledge. In addition, you also need to be familiar with the basic operation and use of databases such as MySQL.

2. Environment configuration

Before entering the new development framework, the development environment needs to be configured. The following uses the Windows operating system as an example to explain how to set up the ThinkPHP development environment.

1. Install the Web server

It is recommended to use Apache or Nginx as the local Web server. By installing web server integration software such as WampServer or XAMPP, it is more convenient to install common software such as Apache and MySQL with one click. Once the installation is complete, start the server and visit localhost, it will jump to the server's default web page.

2. Download and decompress ThinkPHP

Visit the ThinkPHP official website, download the latest version of the ThinkPHP framework, and decompress it to the root directory of the server (default: C:\wamp\www), and Name the unzipped folder "thinkphp".

3. Installation configuration files

ThinkPHP framework contains a variety of configuration files, such as database configuration and routing information configuration. You can copy the default configuration file application.example.conf in the thinkphp directory and name it application.conf.

4. Test environment setup

Once the development environment is successfully configured, you can write a simple test page to verify whether ThinkPHP has been installed and configured successfully. Write the following code to create a new index.php file in the root directory of the server:

define('APP_PATH', './Application/');
define('APP_DEBUG', true);
require './thinkphp/ThinkPHP.php';

Then, access localhost/index.php in the browser, and if successful, the output "Hello, ThinkPHP" and other information proves that the environment is installed successfully.

3. Infrastructure

ThinkPHP mainly includes controller, model, view, routing and other infrastructure.

1. Controller

In the MVC pattern, the C (Controller) layer is used as a controller, which controls the relationship between the view and the model by processing application logic. ThinkPHP's controller code is located in the controller subdirectory under the application directory. Developers can create multiple controller files as needed.

2. Model

The model is the M (Model) layer in MVC, which is used to process data. In ThinkPHP, data operations can use the model of ORM technology, or you can directly use SQL statements for query and operation. The model code is stored in the "model" directory of the "application" folder..

3. View

View is the V (View) layer in MVC, which is used to generate the final output template. Normally, view files in ThinkPHP are saved in the view folder located in the application directory. Developers can use template engines such as Smarty and Twig for view rendering.

4. Routing

Routing technology is a URL address mapping technology that can map requests to corresponding controllers and methods. ThinkPHP supports the use of routing configuration files to define and map URL address rules. Routing configuration files are stored in the config folder under the application directory.

4. Practical operations

Before learning the framework, start with simple practical operations to learn how to use ThinkPHP to create a simple sample page.

1. Create controller and method

Create a controller named IndexController in the application/controller directory, and create a method named index in the controller. In a method, you can return an array containing the data displayed in the view.

namespace app\controller;

class IndexController
{

public function index()
{
    $data = ['name' => 'ThinkPHP'];
    return $data;
}

}

2. Create a view file

Create a view file named index.html and store it in the application/view directory. In the template of the view file, you can use {$name} to point to the data defined in the controller method and display it in the view.

<meta charset="utf-8">
<title>Hello ThinkPHP</title>

<h2>Hello {$name}</h2>

3. Routing configuration

Create a routing configuration file named route.php, located in the application/config directory . In this configuration file, you can set routing rules and mappings.

return [

'/index' => 'index/index',

];

4. Access routing

You can start the server and then access it through the browser Access localhost/index to access the sample page. The content of "Hello ThinkPHP" will be displayed on the page.

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