About Composer usage record sharing
1.简介
Composer是一个PHP的代码包依赖管理工具。它不是一个包管理工具,它涉及到"packages" 和 "libraries",是在项目的基础上进行管理,在项目中某个地方(例如vendor)进行安装。因此Composer仅仅是一个依赖管理工具。
2.Windows安装
安装步骤:
第一步:下载并且运行 Composer-Setup.exe,按照指示完成安装(需要配置PHP环境);
第二步:打开命令行窗口,执行composer -V,看到版本信息后说明安装完成;
3.项目安装(以Yii为例)
3.1 安装Yii
第一步:在执行以下命令
composer global require "fxp/composer-asset-plugin:^1.3.1"composer create-project --prefer-dist --stability=dev yiisoft/yii2-app-basic basic注: 第一条命令安装 Composer asset plugin, 它是通过 Composer 管理 bower 和 npm 包所必须的,此命令全局生效。第二条命令安装 Yii 的最新开发版本。 第二步:访问Yii,能看到正常页面说明安装成功。 3.2 安装yii2-mongodb的扩展
第一步:cd到yii2的项目目录,执行以下命令
composer require --prefer-dist yiisoft/yii2-mongodb
第二步:安装完成后,查看vendor\yiisoft是否创建了yii2-mongodb,如果过创建了则安装成功。
3.3 Composer.json文件
配置说明:
1.require 定义了项目需要哪些包,~2.0.14表示>=2.0.14 and <3.0
2.autoload 定义了自动加载的文件,psr-4表示遵循PSR-4命名空间的自动加载规范
3.name 包的名称
4.示例的配置项repositories 表示从composer加载一个包https://asset-packagist.org
5.type 定义资源类型,示例定义的是yii的扩展
示例:
{ "name": "yiisoft/yii2-mongodb", "description": "MongoDB extension for the Yii framework", "keywords": ["yii2", "mongo", "mongodb", "active-record", "gridfs"], "type": "yii2-extension", "license": "BSD-3-Clause", "support": { "issues": "https://github.com/yiisoft/yii2-mongodb/issues", "forum": "http://www.yiiframework.com/forum/", "wiki": "http://www.yiiframework.com/wiki/", "irc": "irc://irc.freenode.net/yii", "source": "https://github.com/yiisoft/yii2-mongodb" }, "authors": [ { "name": "Paul Klimov", "email": "klimov.paul@gmail.com" } ], "require": { "yiisoft/yii2": "~2.0.14", "ext-mongodb": ">=1.0.0" }, "repositories": [ { "type": "composer", "url": "https://asset-packagist.org" } ], "autoload": { "psr-4": { "yii\\mongodb\\": "src" } }, "extra": { "branch-alias": { "dev-master": "2.1.x-dev" } }}
3.4 Composer常用命令行
composer -v 反馈信息的详细度
composer -h 显示帮助信息。
composer -q 禁止输出任何信息
composer -n 不要询问任何交互问题
php composer.phar install 安装
php composer.phar update 更新
php composer.phar require 申明依赖
相关推荐:
Laravel在Windows下用Composer安装的步骤
The above is the detailed content of About Composer usage record sharing. For more information, please follow other related articles on the PHP Chinese website!

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

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



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.

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.

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

I encountered a tricky problem when developing a new Laravel project: how to quickly build a fully functional and easy-to-manage content management system (CMS). I tried multiple solutions, but all gave up because of complex configuration and inconvenient maintenance. Until I discovered the LaravelCMS package mki-labs/espresso, which not only simple to install, but also provides powerful functions and intuitive management interface, which completely solved my problem.

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.

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.

In project development, it is often necessary to create command-line tools to simplify daily tasks or automate processes. However, creating a command line interface that is beautiful and easy to test is not easy. Recently, I encountered this problem while developing a project that requires command line tools. After some exploration, I found the Symfony/Console library, which greatly simplifies the creation process of command line interfaces.

When developing a Laravel application, I encountered a common but difficult problem: how to improve the security of user accounts. With the increasing complexity of cyber attacks, a single password protection is no longer enough to ensure the security of users' data. I tried several methods, but the results were not satisfactory. Finally, I installed the wiebenieuwenhuis/laravel-2fa library through Composer and successfully added two-factor authentication (2FA) to my application, greatly improving security.
