Composer

PHP Composer 安装与使用说明

安装

Linux

curl -sS https://getcomposer.org/installer | php
mv composer.phar /usr/local/bin/composer

Windows

# 基本 CLI
https://getcomposer.org/Composer-Setup.exe

# 友好 GUI
https://www.getcomposercat.com/

常用命令

国内镜像

# 腾讯云镜像
composer config -g repos.packagist composer https://mirrors.cloud.tencent.com/composer/

# 阿里云镜像
composer config -g repo.packagist composer https://mirrors.aliyun.com/composer/

# 取消配置
composer config -g --unset repos.packagist

查看版本号

composer -V

查看全局配置

composer config -gl

下载包，根据 composer.json 配置

composer install

更新包（更新项目依赖）

composer update

指明具体的包

composer update vendor/package vendor/package2

新增包（申明依赖）

composer require vendor/package:2.* vendor/package2:dev-master

搜索包

composer search monolog

查看包（查看项目依赖）

composer show

根据指定包名查看

composer show monolog/monolog

composer.json

{
    "name":             "meta/silk",
    "description":      "The sample program",
    "keywords":         ["silk", "online shop", "good"],
    "homepage":         "http://www.veryide.com ",
    "time":             "2018-10-10",
    "license":          "GPL",
    "require": {
        "elasticsearch/elasticsearch": "^5.3"
    },
    "autoload": {
        "psr-4": {
            "App\\": "app/",
            "Library\\": "library/"
        }
    },
    "scripts": {
        "post-autoload-dump": "@php vendor/optimize.php"
    }
}

发布包

将项目发布到 Github

• 在根目录里创建 .gitignore 文件，把 vendor 目录和 composer.lock 文件排除 Git 之外

  cat .gitignore
  vendor/*
  composer.lock

• 推送代码至 GitHub

  git init
  git add .
  git commit -m "First commit"
  git remote add origin git@github.com:username/hello.git
  git push origin master

将项目在 Packagist 上注册

1. 在 Packagist 上注册账号并提交之前的 Github 项目

2. Packagist 会去检测此仓库地址的代码是否符合 Composer 的 Package 包的要求

3. 从 Packagist 获取 token，然后去 Github 配置下对应的 GitHub Service Hook 实现代码提交后 Packagist 自动拉取更新

参考文档

• https://packagist.org/
• http://docs.phpcomposer.com/
• http://www.chenjie.info/1880

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