Hopefully, you have now downloaded and installed Wampserver. This will give you a server on your own PC (Windows users), somewhere you can test your scripts. If you haven't yet dowloaded the Wampserver software, you can download it here:
If the installation went well, you should have an new icon in the bottom right, where the clock is:
Click the icon to see the menu above (older versions of Wampserver).
In Windows 10, double-click the Wampserver desktop icon after installation. You'll then see a green square on your taskbar, where the clock is. If you can't see the green square, click the white arrow to see it:
The image below shows Wampserver 3.0.6 running on a Windows 10 64bit machine:
From here, you can stop the server, exit it, view help files, and see the configuration pages.
Click on localhost, though, and you'll see this page appear: (Localhost just refers to the server running on your own computer. Another way to refer to your server is by using the IP address 127.0.0.1.)
Click the link under Tools that says phpinfo(). If all went well, you should be looking at the following page (The one below is a different php version, but don't worry about this - as long as you see something):
The info.php page (click to open in a new window 66K)
If you saw the above page, then congratulations! Your PHP server is up and running, and you can make a start scripting PHP pages.
If you don't see the info.php page, then you will need to refer to the wampserver forums. The page you need is here:
Hopefully, your question will already have been asked an answered. (Unfortunately, we can't answer questions about Wampserver, as it's not our software.)