I'm Facebook PHP SDK, and I am trying to find out how to find out who shared one of my posts so that I can comment on it (on the sharing).
The post result on the graph explorer does not show me who shared the post just and I just have just the number of shares:
..."shares": { "count": 7 },...
I also tried the graph explorer /postid/shares and /postid/shared but neither worked.
Any example using the PHP SDK would be highly appreciated.
thanks Eco