How to receive and transfer Yandex Contacts?

Question

PHP

I use the CardDav protocol.
When a Get request https://carddav.yandex.ru/addressbook/[email protected] returns in the browser:
addressbook
operations:
GET /addressbook/login%40yandex.ru/addressbook/?op=ls
POST / addressbook/login%40yandex.ru/addressbook/?op=multiget
and through curl_exec() it is possible to get an empty list
adding via PUT https://carddav.yandex.ru/addressbook/[email protected] and curl_exec() with this url loading endlessly

Answer 1

I myself was looking for a way to synchronize the thunderbird address book with Yandex.mail using the SOGo Connector. Your question prompted an answer:
the url must be set in the form:
https://carddav.yandex.ru/addressbook/[email protected]