Problems with payment ok.ru what's wrong?

Question

Classmates

Well, I took an example of a payment https://github.com/odnoklassniki/ok-js-sdk is configured and it seems to work, but
I don’t know how this social network works,
it offers authorization twice
Dibilism
Where is the
error
TID is a token

$sign=md5("application_key={$public}code=1name=Payprice=1".md5($_COOKIE['TID'].$params['client_secret']));
echo'<a href="http://m.ok.ru/api/show-payment?application_key='.$public.'&access_token='.$_COOKIE['TID'].'&sig='.$sign.'&code=1&name=Pay&price=1">aaa</a>';

Why can't you redirect them by url with php
And all the
example authorization

Потом вроде норм но что это за фигня
вроде баланс норм но предлагает заказть оки
После нажимаю заказать пишет
Нажимаю закрыть
Еле вызвали мерчант
Теперь сам мерчант не пашет у них

Answer 1

1. Signature. counted as md5(parameters + secret) - see example
2. You can redirect by URL and not open a new window, they just usually prefer not to reload the site / application.
3. The payment system is on prevention - it means that your script did not answer that such a payment can be made. At the time of payment, the OK payment system pulls your script handler (specified in the application settings), you must confirm that the payment is valid, but most likely they didn’t answer anything at all or registered the wrong handler. - read apiok.ru
4. When the payment is closed, a redirect to the prescribed application site occurs. Is it listed for you? - look at an example