You need to create a facebook plugin for PHP site through which users can post a comment.
Very easy task, just a copy-paste of the FB code.
12 freelancers estão ofertando em média $27/hora para este trabalho
Hello. I am willing to take on the job. Versed in many aspects of graphics, video, copywriting, programing languages, translations, engineering etc. Hoping you will award me this project. Best regards
I have followed the project and ready to start it. I can confirm that I can handle this project most successfully. If you have any condition you can share it. I have also an expert team for this kind of jobs.