On Developer.com today there's a new tutorial that looks at working with file uploads in Zend Framework applications and looking more specifically at the Zend_File_Transfer component.

Chances are you've become well acquainted with the Web-based mechanism used to upload files to the Web. But how does this mechanism actually work? What process results in the file being transferred from your computer to the remote server? In this tutorial I'll show you how to create your own file upload mechanism using the popular Zend Framework, which makes accepting, validating, and processing uploaded files a walk in the park.

They look at creating a simple upload form and how to tie a Zend_File_Transfer instance to the backend of it to make uploading and validating the files a simple process. You can find out more information on the component here and another related component, Zend_ProgressBar, here.