Here's a quick snippet of code to manage a file upload in Phalcon (a friend's asked for it and I'd rather stick it on here than a gist).
PHP Code:
<?php
namespace Apps\Web\Controllers;
class SomeController extends \Phalcon\Mvc\Controller
{
    public function myUploadAction()
    {
        $path = '/some/path/to/storage/';
        if ($this->request->isPost()) {
            if ($form->isValid($this->request->getPost())) {
                if ($this->request->hasFiles(true)) {
                    foreach ($this->request->getUploadedFiles(true) as $file) {
                        /* @var $file \Phalcon\Http\Request\FileInterface */
                        $fileName = $file->getName();
                        $temporaryName = $file->getTempName();
                        if ($file->moveTo($path . $fileName)) {
                            // OK! File uploaded and stored.
                            $fileIsLocatedAt = $path . $fileName;
                        } else {
                            // Oops, there's been a problem uploading.
                        }
                    }
                }
            }
        }
    }
}
