[PHP] composer init初始化composer.json文件

当想要初始化一个php项目的时候 , 或者想要开发一个类库给别人使用的时候

都需要一个composer.json文件

直接在项目目录输入 composer init 按照引导就可以生成了 , 详细的引导解释如下

代码语言：javascript复制

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

# 1. 输入项目命名空间
# 注意<vendor>/<name> 必须要符合 [a-z0-9_.-] /[a-z0-9_.-] 
Package name (<vendor>/<name>) [root/test_composer]:yourname/projectname

# 2. 项目描述
Description []:这是一个测试composer init 项目

# 3. 输入作者信息，直接回车可能出现如下提示，有的系统可以直接回车，具体为什么？这里不详细介绍
 Invalid author string.  Must be in the format: John Smith <john@example.com>
# 3.1. 注意必须要符合 John Smith <john@example.com>
Author [, n to skip]: John Smith <john@example.com>

# 4. 输入最低稳定版本，stable, RC, beta, alpha, dev
Minimum Stability []:dev

# 5. 输入项目类型
Package Type (e.g. library, project, metapackage, composer-plugin) []:library

# 6. 输入授权类型
License []:

Define your dependencies.

# 7. 输入依赖信息
Would you like to define your dependencies (require) interactively [yes]?

# 7.1. 如果需要依赖，则输入要安装的依赖
Search for a package:php

# 7.2. 输入版本号
Enter the version constraint to require (or leave blank to use the latest version): >=5.4.0

#  如需多个依赖，则重复以上两个步骤(7.1/7.2)
Search for a package:

# 8. 是否需要require-dev，
Would you like to define your dev dependencies (require-dev) interactively [yes]?


{
    "name": "dduan/test_compser",
    "description": "这是一个测试composer init 项目",
    "type": "library",
    "require": {
        "php": ">=5.4.0"
    },
    "authors": [
        {
            "name": "John Smith",
            "email": "john@example.com"
        }
    ],
    "minimum-stability": "dev"
}
# 9. 是否生成composer.json
Do you confirm generation [yes]?

# 现在安装依赖项吗
Would you like to install dependencies now [yes]?

composer

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