http://www.digitalschoolbd.com/2017/01/how-to-invite-all-friends-to-like.html

This is the first tutorial in our channel, So request all of viewers to subscribe our channel and you can advice me by comment. In this tutorials we know how to invite all of facebook friends to like facebook page by using JavaScript code and addons, extensions,

LInk for code: https://goo.gl/tHLP5A
More Details: DigitalSchoolBD.com