$ composer init

  Welcome to the Composer config generator

This command will guide you through creating your composer.json config.

# 输入项目名称, 项目名称需要是<vendor>/<name>的格式, vendor是要求具有权限的, 这里的michael别人已经注册过了
# 所以是不能使用的(如果你能联系到所有人,对方能够帮你加权限)

Package name (<vendor>/<name>) [michael/未命名文件夹]: michael/demo

# 输入项目描述信息

Description []: this is a demo

# 输入作者信息, 需要是 name <email> 格式

Author [******** <**************>, n to skip]: michael <michaelluthor@163.com>

# 这里输入dev, 表示最低的稳定版匹配模式

Minimum Stability []: dev

# 输入包类型

Package Type (e.g. library, project, metapackage, composer-plugin) []: lib

# 输入授权模式, GPL, LGPL, MIT等

License []: mit

# 开始配置依赖, 这里以PHPMailer为例:

Define your dependencies.

# 开始添加

Would you like to define your dependencies (require) interactively [yes]? yes

# 搜索包名

Search for a package: phpmailer

Found 15 packages matching phpmailer

   [0] phpmailer/phpmailer

   [1] swiftmailer/swiftmailer

   [2] vernes/yiimailer

   [3] phpmailer/phpmailer

   [4] msp/smtp

   [5] zyx/zyx-phpmailer

   [6] yuan1994/tp-mailer

   [7] rmrevin/yii2-postman

   [8] dappur/framework

   [9] byjg/mailwrapper

  [10] qu-modules/qu-phpmailer

  [11] phpmailerflamin/phpmailer

  [12] phalapi/phpmailer

  [13] filips123/monolog-phpmailer

  [14] sun/sunmailer

# 输入编号添加依赖

Enter package # to add, or the complete package name if it is not listed: 0

Enter the version constraint to require (or leave blank to use the latest version):

Using version ^6.0 for phpmailer/phpmailer

# 直接回车停止添加依赖

Search for a package:

# 确认不再添加

Would you like to define your dev dependencies (require-dev) interactively [yes]? no

# 预览生成的composer.json文件

{

    "name": "michael/demo",

    "description": "this is a demo",

    "type": "lib",

    "require": {

        "phpmailer/phpmailer": "^6.0"

    },

    "license": "mit",

    "authors": [

        {

            "name": "michael",

            "email": "*********@*****.com"

        }

    ],

    "minimum-stability": "dev"

}

# 确认生成配置文件

Do you confirm generation [yes]? yes

# 将vendor添加到忽略列表

Would you like the vendor directory added to your .gitignore [yes]? yes