How to customize naming in thinkphp

ThinkPHP is a very popular PHP framework, and its naming rules follow the conventional PSR-4 automatic loading specification. Users can customize naming through namespaces.

1. Namespace

1.1 What is a namespace

Namespace is a technology that contains code within a specific scope. This technology can modify the code. Packaged and isolated for ease of use and maintenance.

Defining a namespace in PHP is very simple, just declare a namespace before the class definition. For example:

<?php
namespace appcontrollers;

class IndexController{
    // ...
}

1.2 The role of namespace

The main role of namespace is to avoid naming conflicts. It allows us to use different code libraries in a PHP application without naming. conflict.

In addition, namespaces also allow us to better organize the code and improve the readability and maintainability of the code.

2. Custom naming

In ThinkPHP, the default namespace is "app", which is our application root namespace. However, in actual development, we usually need to customize naming to better organize our code.

2.1 Directory structure

First, we need to define a new directory structure. For example, we create a directory named "common" in the root directory of the application. There are two subdirectories "controller" and "model" in this directory, which are used to store controller and model files respectively.

|-- application
|   |-- common
|   |   |-- controller
|   |   |-- model
|   |-- config
|   |-- ...

2.2 Namespace definition

We need to define a new namespace in the controller and model files, for example:

<?php
namespace appcommoncontroller;

class BaseController{
    // ...
}

<?php
namespace appcommonmodel;

use thinkModel;

class UserModel extends Model{
    // ...
}

In this way, we define a new namespace named A new namespace for "appcommon", and the "controller" and "model" subnamespaces under that namespace.

2.3 Automatic loading

Finally, we need to tell ThinkPHP how to automatically load the namespace we defined. There is a file named "autoload.php" in the "config" directory under the application root directory. We only need to add the following code to the file:

<?php
// 自定义命名空间的自动加载
// 当访问的类在appcommon命名空间下时，自动去common目录下查找相应的文件
    hinkLoader::addNamespace('common', APP_PATH.'common/');

In this way, when we When using custom naming in a controller or model, the corresponding file can be automatically loaded. For example:

<?php
namespace appindexcontroller;

use appcommoncontrollerBaseController;

class IndexController extends BaseController{
    // ...
}

<?php
namespace appindexcontroller;

use appcommonmodelUserModel;

class UserController{
    public function index(){
        $user = UserModel::get(1);
        // ...
    }
}

The above is the method of custom naming. Custom naming can effectively organize and manage our code, improving the maintainability and readability of the code.

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