问题
As far as I've done research I could come up with use of can_post in fql query. Now how can I find out can_post value of the user. I'm using php-sdk and have taken the permission to post to friend's wall but since if friend has disabled posting on his wall it would return an exception which would make the script stop. So, if I could use this can_post value to check if he can post before posting.
回答1:
You could get the can_post field using fql and that will return either true or false. So if friend has disabled posting on his wall, in that case also can_post field would return false. So that would aid in wall posting depending on can_post...
来源：https://stackoverflow.com/questions/10479123/check-if-a-facebook-user-can-post-in-his-friends-wall-or-not