As we all know, on December 5, 2012 Facebook has decided to remove the offline_access permission and has introduced a concept called long-lived
access tokens which last a maximum of 60 days.
To get Long-lived Access Token from your own Facebook Application
, This what you'll need to set up from your App Dashboard:


If you're not sure about this tool result, Use Facebook Developers Access Token Debugger to test token expiry.
Detect if User Posting More Then 1 Post in an Hour, Detect Post with Private Link or Attachment Not Available, Detect Comment Message Less Then 10 Characters, Detect Comment Message More Than 1000 Characters, Detect Comment Message with Repetition Characters More Then 10 Characters, Detect Comment Message with Repetition Words More Than 10 Words 

