PHP Write Posted Data to File - php

Question

I'm relatively new to PHP and I'm trying to get a small script running. I have a VB .net program that posts data using the following function.
Public Sub PHPPost(ByVal User As String, ByVal Score As String)
Dim postData As String = "user=" & User & "&" & "score=" & Score
Dim encoding As New UTF8Encoding
Dim byteData As Byte() = encoding.GetBytes(postData)
Dim postReq As HttpWebRequest = DirectCast(WebRequest.Create("http://myphpscript"), HttpWebRequest)
postReq.Method = "POST"
postReq.KeepAlive = True
postReq.ContentType = "application/x-www-form-urlencoded"
postReq.ContentLength = byteData.Length
Dim postReqStream As Stream = postReq.GetRequestStream()
postReqStream.Write(byteData, 0, byteData.Length)
postReqStream.Close()
End Sub
Where "myphpscript" is acutally the full URL to the PHP script. Basically I'm trying to POST the "User" variable and the "Score" variable to the PHP script. The script I've tried is as follows:
<?php
$File = "scores.rtf";
$f = fopen($File,'a');
$name = $_POST["name"];
$score = $_POST["score"];
fwrite($f,"\n$name $score");
fclose($f);
?>
The "scores.rtf" does not change. Any help would be appreciated. Thanks ahead of time, I'm new to PHP.

Answer 1

Ensure that your script is receiving the POST variables.
http://php.net/manual/en/function.file-put-contents.php
You can try file_put_contents, it combines the use of fopen ,fwrite & fclose.
It could be wise to use something like isset/empty to check that there is something to write before writing.
<?php
$file = 'scores.rtf';
// Open the file to get existing content
$current = file_get_contents($file);
// Append a new person to the file
$current .= print_r($_POST);
//Once confirmed remove the above line and use below
$current .= $_POST['name'] . ' ' . $_POST['score'] . "\n";
// Write the contents back to the file
file_put_contents($file, $current);
?>
Also, totally overlooked the RTF part, definitely look into what Mahan mentioned. I'd suggest the above if you have no need for that specific file type.

Answer 2

The "scores.rtf" does not change.
well RTF files is handled differently because its not really a pure text file it contains meta-data and tags that controls how text is displayed on the rtf file. please have a time to read to the following sources
http://www.webdev-tuts.com/generate-rtf-file-using-php.html
http://b-l-w.de/phprtf_en.php
http://paggard.com/projects/doc.generator/doc_generator_help.html
if in any case you want a normal text file you can use the code below, don't use fwrite(), please use file_put_contents()
file_put_contents("scores.txt", "\n$name $score");