Facebook , Linkedin Share AND Youtube Subscribe core PHP CODE Only

I want code in CORE PHP on that code * i want to download a file but before download every time * User can view three button facebook share , linkedin Share and youtube subcribe * if user done any one of above then download button will display * on click of download button download will started automatically * fb share , linkedin share , youtube subscribe count and download count store in database separately alog with user ip * fb/ linkedin share page link will be manege by database * youtube Chanel link come from db * download button link also need to come from database