Organizing objects and libraries

I've been creating a small number of libraries / classes from scratch in php. I come from a codeigniter background, and I'm trying to make some libraries with similar functionality. I keep running into issues regarding objects.

Is the best way to create a super object $this somehow? My main issue is that I've created a view object and I run a function called load which looks like so:

class View {

        public function __construct() {
        }

        public function load($file = NULL, $data = array()) {
                if($file) {
                        $file .= '.php';
                        if(file_exists($file)) {
                                // Extract variables BEFORE including the file
                                extract($data);
                                include $file;
                                return TRUE;
                        } else {
                                echo 'View not found';
                                return FALSE;
                        }
                } else {
                        return FALSE;
                }
        }
}

Then in my php file, I have at the top include 'libraries.php'; which looks like:

include 'database.php';
include 'view.php';
include 'input.php';
include 'form.php';

$config = array(
        'host' => 'localhost',
        'username' => 'username',
        'password' => 'password',
        'database' => 'database'
);

$database = new Database($config);
$view = new V开发者_JAVA技巧iew();
$input = new Input();
$form = new Form();

From the file which I included the libraries, I am able to write something like $form->value('name'); without errors. However, if I do something like this:

$view->load('folder/index', array('var_name' => 'var_value')); then from the folder/index.php file I can access $var_name just fine, but not $form->value('name');. I get errors such as Call to a member function value() on a non-object in ...

My question is how can I organize my libraries and classes in a way that will be reusable. I don't want to use a front loader (an index.php file that everything runs through first). This may be an issue with the way I wrote my classes, but I imagine it's a larger issue regarding where things are located etc.

Put your library/class files in a common directory. Something like:

 www
 |_includes
 | |_classes
 | | |_view.php
 | |_config
 |   |_database.php
 |_other_folder
   |_index.php

You can then set a common include path in your .htaccess file to this "includes" directory:

php_value include_path .:/path/to/www/includes

Then the other_folder/index.php file just needs something like:

require_once('config/database.php');
require_once('classes/view.php');