In PHP, it isn't necessary to do any work to get the GET or POST form contents decoded and separated, because the PHP server does all that work for you, and also collects all cookies your browser has sent to the server, putting each set of key=value pairs in appropriately-named associative arrays:

$_GET = Array ( )

$_POST = Array ( )

$_COOKIE = Array ( )

PHP also merges GET, POST and COOKIE data into a single associative array:

$_REQUEST = Array ( )

Now this PHP script will show you the values associated with specific keys, and then check which requests you put in the correct places respectively (any request with right keyword but associated with wrong key is ignored).
Trespass - fn