使用Composer和PSR-0进行命名空间自动加载无法正常工作

Question

I have made a test project to understand how composer and packagist works. The project is also on packagist .

A simple composer require rakibtg/gowin will install the package from packagist.

But for some reason the namespacing is not working as expected.

Here is my directory structure and the composer file.

Here is the GoWin.php file:

  <?php

  namespace GoWin;

  class GoWin {
    public function serve() {
      echo 'Lets Win Everybody!';
    }
  }

Here is the test.php file where i am trying to use the serve() method from the GoWin class.

  <?php

  require_once './vendor/autoload.php';

  // use GoWin;

  ( new GoWin\GoWin() )->serve();

But it fails to execute the serve method with this error:

Fatal error: Uncaught Error: Class 'GoWin\\GoWin' not found in

/Users/usr/Desktop/t estGoWin/index.php:7 Stack trace:

0 {main} thrown in /Users/usr/Desktop/testGoWin/index.php on line 7

At this moment i cant understand what i am missing! Also should i use psr-0 or psr-4?

Answer 1

I solved it by switching to PSR-4, simply update the composer.json autolaod property as this:

"autoload": {
    "psr-4": {
        "GoWin\\": "src/"
    }
},