An example of a torrent handler, some factories, torrent class and dispatcher.

gistfile1.php

<?php

interface TorrentHandler
{
    public function retrieveTorrents();
    public function getTorrent($id);
    public function startTorrent(TorrentInterface $torrent);
    public function stopTorrent(TorrentInterface $torrent);
    public function pauseTorrent(TorrentInterface $torrent);
    public function deleteTorrent(TorrentInterface $torrent);
}

class TransmissionTorrentHandler implements TorrentHandler
{
    private $dispatcher;
    private $factory;
    private $torrents;
    
    public function __construct(TorrentFactory $factory, DispatcherInterface $dispatcher)
    {
        $this->factory = $factory;
        $this->dispatcher = $dispatcher;
    }
    
    public function retrieveTorrents()
    {
        // Gets torrent data
        $data = $this->dispatcher->dispatch();
        
        // Create new torrent objects using factory and store in $this->torrents
        foreach ($data as $torrentData)
        {
            $obj = $this->factory->create();
            $obj->setId($torrentData['whatever']['id']);
            $obj->setName($torrentData['whatever']['name']);
            //etc
            $this->torrents[] = $obj;
        }
    }
    
    public function stopTorrent(TorrentInterface $torrent)
    {
        $this->torrents[$torrent]->stop();
    }
}



// ---------------------------------------------

class TorrentFactory
{
    public function create()
    {
        return new Torrent();
    }
}

interface TorrentInterface
{
    public function start();
    public function stop();
    public function pause();
    public function delete();
}

abstract class TorrentBase implements TorrentInterface
{
    private $id;
    private $name;
    private $status;
    private $upload;
    private $download;
    private $ratio;
    
    public function start();
    public function stop();
    public function pause();
    public function delete();
}

class Torrent extends TorrentBase
{
    private $id;
    private $name;
    private $status;
    private $upload;
    private $download;
    private $ratio;
    
    public function start();
    public function stop();
    public function pause();
    public function delete();
}

// ---------------------------------------------------

// This is to actually get the torrent data
// I will be using CommandDispatcher for command line stuff
// You may be using DBDispatcher to get stuff from the DB
interface DispatcherInterface
{
    public function dispatch();
}

abstract class CommandDispatcher implements DispatcherInterface
{
    public function dispatch();
}