PHP 5.3 Use and Symfony Forms

Im trying to include some Symfony form components into my project.

use Symfony\Component\Form\Form; 
use Symfony\Component\Form\FormInterface; 

If I do this I get :

Fatal error: Class 'Symfony\Component\Form\Form' not found

Even though I know 开发者_如何学Gothat this is where the Form elements are. Using

require 'Symfony\Component\Form\Form.php'

works ,but I need to alias the form elements to get the class to work.

EDIT: Trying this after copying the ClassLoader to the project still brings same error:

require_once __DIR__.'/Symfony/Component/ClassLoader/UniversalClassLoader.php';

use Symfony\Component\ClassLoader\UniversalClassLoader;

$loader = new UniversalClassLoader();
$loader->registerNamespaces(array(
    'Symfony' => __DIR__.'/Symfony',
));
$loader->register();

---

You need to set up autoloading. The 'use' does not do that for you. To do this, include the UniversalClassLoader, tell it where to load the Symfony files from and register it.

require_once __DIR__.'/vendor/Symfony/Component/ClassLoader/UniversalClassLoader.php';

use Symfony\Component\ClassLoader\UniversalClassLoader;

$loader = new UniversalClassLoader();
$loader->registerNamespaces(array(
    'Symfony' => __DIR__.'/vendor',
));
$loader->register();

The 'use' statement just aliases the fully-qualified class name to a shorter version for you to use in that file.

---

An alternative approach:

require_once __DIR__.'/Symfony/Component/ClassLoader/UniversalClassLoader.php';

use Symfony\Component\ClassLoader\UniversalClassLoader;

set_include_path(__DIR__.PATH_SEPARATOR.get_include_path());
$loader = new UniversalClassLoader();
$loader->useIncludePath(true);
$loader->register();

That should work for you, yes?