Local composer dev repo namespacing issue

Question

I am using Composer version 2.2.25

Per https://getcomposer.org/doc/05-repositories.md#path, I have this structure:

├── path
│   └── to
│       └── composer_stuff
│           └── compiled
│               └── composer.json
│           └── local
│               └── composer.json
│               └── src
│                   └── Foo
│                       └── Foo.php
│       └── public_html
│           └── index.php

---

/path/to/composer_stuff/compiled/composer.json

{
    "repositories": [
        {
            "type": "path",
            "url": "/path/to/composer_stuff/local",
            "options": {
                "symlink": true
            }
        }
    ],
    "require": {
        "local/local": "dev-master"
    }
}

/path/to/composer_stuff/local/composer.json

{
    "name": "local/local",
    "type": "library",
    "autoload": {
        "psr-4": {
            "local\\local\\": "src/"
        }
    }
}

/path/to/composer_stuff/local/src/Foo/Foo.php

<?php
use local\local\Foo;

class Foo {
    public function __construct() {}
}

/path/to/public_html/index.php

<?php
require_once( '/path/to/composer_stuff/compiled/vendor/autoload.php' );

$foo = new local\local\Foo\Foo();

---

Commands:

cd /path/to/composer_stuff/compiled
composer update

vendor directory was created successfully with expected symlink.

---

Why does my index.php page result in this error?

Fatal error: Cannot declare class Foo because the name is already in use in /path/to/composer_stuff/local/src/Foo/Foo.php on line 4

To note: it doesn't matter if I implement something totally random like fgjhrtjhfgjghjg\fgjhrtjhfgjghjg(), same error.

I am at my wits end here =(

Answer 1

The statement use local\local\Foo means importing a class named Foo, so you cannot redeclare a class with the same name.

Have you confused importing a class with declaring a namespace?

<?php
namespace local\local;

class Foo {
    public function __construct() {}
}