Home Development Tools composer Use Composer to solve dependency injection: application of PSR-11 container interface

Use Composer to solve dependency injection: application of PSR-11 container interface

Apr 18, 2025 am 07:39 AM
composer ai

You can learn composer through the following address:

Dependency management is a common but difficult problem when developing large PHP projects. Initially, I tried using global variables and manually injecting dependencies, but this not only increased the complexity of the code, but also easily led to errors. Finally, I successfully solved this problem by using the PSR-11 container interface and with the power of Composer.

PSR-11 (PHP-FIG Standard Recommendation Report 11) defines a common container interface, which is a standardized abstraction of dependency injection containers. Using PSR-11 can ensure that your project is compatible with different container implementations, thereby improving the portability and maintainability of your code.

To use the PSR-11 container interface in your project, you need to first install it through Composer:

 <code>composer require psr/container</code>
Copy after login

After installation, you can use the interface defined by PSR-11 to build your dependency injection system. Here is a simple example showing how to use the PSR-11 container interface:

 <code class="php">use Psr\Container\ContainerInterface; class MyService { private $dependency; public function __construct(DependencyInterface $dependency) { $this->dependency = $dependency; } public function doSomething() { // 使用依赖做一些事情} } class MyContainer implements ContainerInterface { private $entries = []; public function get($id) { if (!$this->has($id)) { throw new NotFoundException('No entry was found for this identifier.'); } return $this->entries[$id]; } public function has($id) { return isset($this->entries[$id]); } public function set($id, $value) { $this->entries[$id] = $value; } } $container = new MyContainer(); $container->set(DependencyInterface::class, new ConcreteDependency()); $myService = new MyService($container->get(DependencyInterface::class)); $myService->doSomething();</code>
Copy after login

By using the PSR-11 container interface, I not only simplified the process of dependency injection, but also ensured that my code is compatible with various container implementations. This greatly improves the flexibility and maintainability of the project.

In general, the PSR-11 container interface provides an efficient and standardized dependency management solution through the installation and use of Composer. If you encounter similar dependency injection problems in development, try using the PSR-11 container interface and Composer to simplify your development process.

The above is the detailed content of Use Composer to solve dependency injection: application of PSR-11 container interface. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
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

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Solve caching issues in Craft CMS: Using wiejeben/craft-laravel-mix plug-in Solve caching issues in Craft CMS: Using wiejeben/craft-laravel-mix plug-in Apr 18, 2025 am 09:24 AM

When developing websites using CraftCMS, you often encounter resource file caching problems, especially when you frequently update CSS and JavaScript files, old versions of files may still be cached by the browser, causing users to not see the latest changes in time. This problem not only affects the user experience, but also increases the difficulty of development and debugging. Recently, I encountered similar troubles in my project, and after some exploration, I found the plugin wiejeben/craft-laravel-mix, which perfectly solved my caching problem.

Laravel framework installation method Laravel framework installation method Apr 18, 2025 pm 12:54 PM

Article summary: This article provides detailed step-by-step instructions to guide readers on how to easily install the Laravel framework. Laravel is a powerful PHP framework that speeds up the development process of web applications. This tutorial covers the installation process from system requirements to configuring databases and setting up routing. By following these steps, readers can quickly and efficiently lay a solid foundation for their Laravel project.

How to resolve HTTP request issues using Composer: A practical guide to the yiche/http library How to resolve HTTP request issues using Composer: A practical guide to the yiche/http library Apr 18, 2025 am 08:06 AM

During development, HTTP requests are often required, which may be to get data, send data, or interact with external APIs. However, when faced with complex network environments and changing request requirements, how to efficiently handle HTTP requests becomes a challenge. I have encountered a problem in a project: I need to send requests to different APIs frequently, and log the requests to facilitate subsequent debugging and analysis. After trying several methods, I discovered the yiche/http library. It not only simplifies the processing of HTTP requests, but also provides dynamic logging functions, greatly improving development efficiency.

How to solve the problem of JavaScript error handling using Composer How to solve the problem of JavaScript error handling using Composer Apr 18, 2025 am 08:30 AM

I'm having a tough problem when developing a complex web application: how to effectively handle JavaScript errors and log them. I tried several methods, but none of them could meet my needs until I discovered the library dvasilenko/alterego_tools. I easily solved this problem through the installation of this library through Composer and greatly improved the maintainability and stability of the project. Composer can be learned through the following address: Learning address

Use Composer to solve dependency injection: application of PSR-11 container interface Use Composer to solve dependency injection: application of PSR-11 container interface Apr 18, 2025 am 07:39 AM

I encountered a common but tricky problem when developing a large PHP project: how to effectively manage and inject dependencies. Initially, I tried using global variables and manual injection, but this not only increased the complexity of the code, it also easily led to errors. Finally, I successfully solved this problem by using the PSR-11 container interface and with the power of Composer.

How to easily manage Japanese county-level administrative divisions in Laravel: Guide to using the petfinder/prefectures library How to easily manage Japanese county-level administrative divisions in Laravel: Guide to using the petfinder/prefectures library Apr 18, 2025 am 07:51 AM

I encountered a difficult problem when developing a Laravel project related to Japan: how to efficiently manage and use Japanese county-level administrative division information. This issue not only involves the accuracy of the data, but also needs to consider the ease of use and maintenance of the data. After some exploration, I discovered the Laravel package petfinder/prefectures, which provided me with the perfect solution.

Improve the accessibility of SilverStripe website: Installation and use of Flying Focus module Improve the accessibility of SilverStripe website: Installation and use of Flying Focus module Apr 18, 2025 am 08:09 AM

When developing a government website project, I encountered a difficult problem: how to improve the accessibility of the website to meet the needs of different users, especially for visually impaired users, navigating and operating the website can be very difficult. After trying multiple methods, I found a JavaScript library called FlyingFocus that significantly improves the accessibility of the website. However, integrating it into the SilverStripe website is a challenge. Fortunately, I found the dia-nz/silverstripe-flying-focus module, which simplified the integration process of FlyingFocus and solved my puzzle.

Managing Roketi Panel with Composer: Solve complex problems in development environments Managing Roketi Panel with Composer: Solve complex problems in development environments Apr 18, 2025 am 08:15 AM

When developing a RoketiPanel project, I encountered a complex problem: how to test and develop efficiently in different environments. Especially when dealing with database configuration and Behat testing, the complexity of configuration confuses me. By using Composer and its dependency management capabilities, I have successfully simplified this process and improved development efficiency.

See all articles