Make FB group posting work in a PHP script

Job ID: 32133507

Budget: $500 – $550 USD

I have a PHP script (built on codeigniter) that allows users to connect their Facebook accounts and post to their joined Facebook groups and their pages. The app currently uses the Cookie method to connect and post.

But the cookie method is having issues for a lot of users and it's not a good solution for posting to joined groups.

I need some solution that will allow users to post to their joined FB groups and their pages through the website. Only Bid if you know a way to make it work.
Related categories: PHP Codeigniter MySQL HTML Facebook API