如何使用没有参数的spl_autoload_register？

Question

I have a following directory structure in my project:

Test
--Cats
----Fatty.php // namespace: Test\Cats
--index.php

index.php:

spl_autoload_extensions(".php");
spl_autoload_register();

Test\Cats\Fatty::fattyMeow();

The error I'm getting:

Fatal error: Class 'Test\Cats\Fatty' not found in /var/www/public/Test/index.php on line 9

According to this comment at php.net, spl_autoload_register() should work just fine without any autoload function provided if namespaces match the directory structure of the project. So, Why the code above doesn't work? Or did I misunderstood something?

Answer 1

The reason why this is not working for you is because you are including the name of your main directory Test in your namespace. When you do this and you run spl_autoload it will think that directory exists as a sibling to index.php.

To fix this adjust your namespaces and remove Test:

in index.php:

Cats\Fatty::fattyMeow();

in Fatty.php:

namespace Cats;