Yes I did all these things.
I downloaded wampserver to the c:/wamp folder and before using the php I always turned on the services.
After that I always uploaded my files to the www directory and I used the browser by typing htttp://localhost/file_name.php
And then it didn't appear anything by using mozilla browser.
When I try to use the internet explorer it asks to save the file by using downloading files message box with the message "Do you want to save or open this file?"
If I pressed the save button of that message box it asks the where do I need to save the file.
After that it automatically saved the files in the default folder and then it did not open anything and automatically closed the browser.
If I pressed the open button it automatically closed the browser.
I coudn't understand where is the problem is.