CODEWITHSUNDEEP
phpoopautoload
handsome
handsome

Reputation: 2412

Autoload parent class from a different directory

I´m having a hard time trying to autoload parent classes

this is my directory structure

controllers
--- Homepage.php
core
--- Controller.php
index.php

This is the content of my index.php

function __autoload($class_name)
{
    $file_name = str_replace("\\", DIRECTORY_SEPARATOR, $class_name) . '.php';
    include $file_name;
}

$homepage = new \Controllers\Homepage();
$homepage->index();

This is the content of my controllers/Homepage.php file

namespace Controllers;

class Homepage extends Controller
{

    public function index()
    {
        echo 'Homepage::index';
    }

}

and this is my core/Controller.php

namespace Core;

class Controller
{

    protected function something()
    {
        echo 'blablabla';
    }

}

when i run index.php the autoloader loads Hompege correctly but is looking for Controller.php in the controllers directory I tried extending from class Homepage extends Core\Controller but now is trying to get it from controllers/core

Upvotes: 1

Views: 826

Answers (1)

Fabian Schmengler
Fabian Schmengler

Reputation: 24551

This is how the namespaces are resolved:

  1. class Homepage extends Controller

    Controller is resolved to Controller\Controller because it is a non-qualified class name (like a relative file path), and the current namespace is used.

  2. class Homepage extends Core\Controller

    Core/Controller is resolved to Controller\Core\Controller because it also is a non-qualified class name and a sub-namespace of the current namespace is used

  3. class Homepage extends \Core\Controller

    \Core\Controller is a fully qualified class name and will be resolved to Core\Controller

  4. use Core\Controller; class Homepage extends Controller

    Here the use statement specifies that a non-qualified Controller is treated as Core\Controller

Variants 3 and 4 will work as intended.

Upvotes: 1

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