Posting a from to URL problem




I am in middle of one problem and here is the brief description.

I am submitting one form to some URL on one button click, now I have to retrieve that page content and back to original site in such a way that no one can find that URL in address bar.

now things are going like this, as I submit form to that URL program control goes to that URL and I can not come back to my site.

I am waiting for your :help:
Thanks for reading.
Looks a lot like this post:
Yes, it looks similar, but didn't work for me. Because I can not get the result by using Socket php programming. I also used Curl method too. Nothing is working here....