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✅ 一、准备你的类为 Composer 包

1. 创建目录结构（例如叫 my-utils）

laravel-utils/
├── src/
│   └── MyHelper.php
├── composer.json
└── README.md

2. 示例类：src/MyHelper.php

<?phpnamespace MyVendor\MyUtils;class MyHelper
{public static function sayHello($name){return "Hello, {$name}!";}
}

3. 创建 composer.json

🔁 把 myname换成你自己的用户名或公司名（建议小写）。

{"name": "myname/laravel-utils","description": "A helper class for common functions.","type": "library","license": "MIT","authors": [{"name": "Your Name","email": "you@example.com"}],"au