secure file sharing within departments inorganisation

[appar]

how to develop project for secure file sharing within departments in organization,to take log on report i.e who are logged in what they did, give outline, is possible in php or vb

[Atli]

is possible in php or vb

Of course.

how to develop project for secure file sharing

You generally start by outlining what the application needs to do; then you figure out how to do that, design the code, set up test cases; then you write the code, test it, find bugs and fix them. (That last part usually goes on even beyond the point where the application is deployed.)

And seeing as this is about security, you need to familiarize yourself (intimately) with the protocols and methods relating to the security model you are using, so you can anticipate security threats and prevent them. (Preemptively. Once they are abused, it's to late.)