import contacts from gmail/hotmail/yahoo to php
i would like to import contacts from gmail/hotmail/yahoo to my php applications just like those found in social network. i've read how gmail does it but im still not very clear about it. it says i would need to do a http request like this https://www-opensocial.googleusercontent.com/api/people/@me/@self but how should i send this info?? i tried running this on the browser and it returns "Cannot make anonymous request without explicit user ID in the URL" so how can i pass the correct user ID then?? for yahoo, the Yahoo! Address Book API is deprecated and now we should use Contacts API. have