Example trade

Hi guys. I need example.
I have this:
$tradeOffers = $steam->tradeOffers();
var_dump($tradeOffers->getTradeOffersViaAPI(true));
$trade = $tradeOffers->createTrade(12345);
$trade->addOtherItem(730, 2, "12345678");
var_dump($trade->send());
var_dump($trade->sendWithToken('token'));

how i must edit to send trade? My steamid: aaaaaaa
Other steamid: bbbbbbb
my itemid: ccccccc
Sorry for bad english, but i use google translator :(