Remotely call a PHP function?

Question

My alliance in a game uses a tool to keep track of information. I am trying to make a program that allows me to simply copy information I want to submit to the system's clipboard and then push it to the "submit form" of the alliance's website.
At any rate, I have the clipboard part working. The part that isn't working is pushing the update to the server. The page I want is called:
spioparser.inc.php
The class declared in that PHP file is "Probeparser"
and the specific function in that file I want to call is "parseEntry($string,$flush=true)"
Is it even possible to have my java program open a connection to the server and send information to this function (this function will automatically insert it into the database.)?
The code I am using to try and connect to the server is this:
URL Gala = new URL("http://" +
                    "<username>:<password>@" +
                    "mtuogame.lhosting.info/GalaxyTool/secret/spioparser.inc.php");
               HttpURLConnection Connection =
                    (HttpURLConnection) Gala.openConnection();
               Connection.setDoInput(true);
               Connection.setDoOutput(true);
               Connection.setRequestProperty( "Content-type",
                    "application/x-www-form-urlencoded" );
               Connection.setRequestProperty( "Content-length",
                    Integer.toString(Input.length()));
               DataInputStream tmp = new DataInputStream(Connection.getInputStream());
               readInput(tmp); //reads all input until EOF
               PrintWriter out = new PrintWriter(Connection.getOutputStream());
               out.print(Input); //sends the report to server?Thanks.
-Kingdud

Answer 1

If you have things set up so that some HTTP request will call that function, then you can certainly call that HTTP request from Java code. As you already know.
But generally you can't just reach out over the network and run arbitrary executable code on somebody else's computer. (Think for a minute what security implications that would have.) Java or not, the answer is the same.