Making php includes work in a sub-directory

Question

Ok, I am creating an admin interface for my custom blog at the url /admin.

Is it possible for me to be able to use the same includes (including autoload), as the roo

Answer 1

Another option that I've used for functions.php in the past is a class autoloader.

//Class Autoloader
spl_autoload_register(function ($className) {

    $className = strtolower($className);
    $path = "includes/{$className}.php";

    if (file_exists($path)) {

        require_once($path);

    } else {

        die("The file {$className}.php could not be found.");

    }
});

This works under certain circumstances and has been helpful to me in the past when I don't want to define an absolute $root url.