创建包

创建自己的 Composer 包。

设置 composer.json

$ composer init
Welcome to the Composer config generator
This command will guide you through creating your composer.json config.
Package name (<vendor>/<name>) [administrator/lh1010]: lh1010/lh1010
Description []: lh1010
Author [Jasper <610392592@qq.com>, n to skip]:
Minimum Stability []: dev
Package Type (e.g. library, project, metapackage, composer-plugin) []: library
License []: MIT
Define your dependencies.
Would you like to define your dependencies (require) interactively [yes]? no
Would you like to define your dev dependencies (require-dev) interactively [yes]? no
{
    "name": "lh1010/lh1010",
    "description": "lh1010",
    "type": "library",
    "license": "MIT",
    "authors": [
        {
            "name": "Jasper",
            "email": "610392592@qq.com"
        }
    ],
    "minimum-stability": "dev",
    "require": {}
}
Do you confirm generation [yes]? yes
Would you like the vendor directory added to your .gitignore [yes]? yes

生成后的 composer.json：

{
    "name": "lh1010/lh1010",
    "description": "lh1010",
    "type": "library",
    "license": "MIT",
    "authors": [
        {
            "name": "Jasper",
            "email": "610392592@qq.com"
        }
    ],
    "minimum-stability": "dev",
    "require": {}
}

修改 composer.json：

{
    "name": "lh1010/lh1010",
    "description": "lh1010",
    "type": "library",
    "license": "MIT",
    "authors": [
        {
            "name": "Jasper",
            "email": "610392592@qq.com"
        }
    ],
    "minimum-stability": "dev",
    "require": {
        "php": ">=5.4.0"
    },
    "autoload": {
        "psr-4": {
            "Lh1010\\": "src/"
        }
    }
}

src 相关文件

在当面目录下创建 src/Tools.php 测试文件：

<?php
namespace Lh1010;
class Tools
{
    public static function demo()
    {
        echo 'This is demo';
    }
}

映射关系

composer install

此时会在 vendor/composer/autoload_psr4.php 中生成命名空间和目录的映射关系，被包在一个数组中：

<?php
// autoload_psr4.php @generated by Composer
$vendorDir = dirname(dirname(__FILE__));
$baseDir = dirname($vendorDir);
return array(
    'Lh1010\\' => array($baseDir . '/src'),
);

本地测试

<?php 
require './vendor/autoload.php';
use Lh1010\Tools;
Tools::demo();

packagist

上传 Composer 包至 github。注意：.gitignore 屏蔽 vendor 文件。
创建 packagist.org 账号，提交至 packagist：

到这里，composer 包就提交成功了，如图：

网上有说同步的问题，但在测试当天（19-03-21），通过 packagist 提交后，与 github 已自动同步。可能原因：使用 github 账号授权登录 packagist（待验证）。

测试 dev 版本：

composer require lh1010/lh1010 dev-master

当前目录下创建 index.php：

<?php 
require './vendor/autoload.php';
use Lh1010\Tools;
Tools::demo();

发布正式版

版本默认是 dev-master，Composer 包的版本号会从 Git 的 tag 中同步过来，因此先设置项目代码的 tag。

git tag 1.0.0
git push --tag

composer lh1010/lh1010