How to register namespaces (with PHP 5.3) in the Symfony 1.4 for the autoloader class feature (like the Symfony 2.0)?
You can use Composer and it's very easy. Just install it on your machine (you probably have already since it's 2015 now) and run in your project folder:
composer init
You can then install all the packages you want with composer and include just this line in your ProjectConfiguration.class.php
:
require_once __DIR__.'/../vendor/autoload.php';
Note that paths may differ if you changed the default Symfony1.4 directory structure.