Composer autoload Class not found例外

I create a file named Util.php and there are two class in the Util.php file.

• class StringUtil {}
• class ArrayUtil {}

how can I make the Util.php into composer library for other project include? now I got a Class Not Found Exception.

I create a file named Util.php and there are two class in the Util.php file.

First of all this is bad practice

Anyway, it can help: https://getcomposer.org/doc/04-schema.md#files

{
    "autoload": {
        "files": ["src/MyLibrary/functions.php"]
    }
}