Programming Forums - I need some help with files

I seem to have hit a snag with PHP, if anyone can lend a hand...

This is the code I used:

<HTML>

<HEAD>

<TITLE>TESTING PHP</TITLE>

</HEAD>

<BODY>

<?php

        $filename = 'test.txt';

        $myvalue=0;



        if (!$handle = fopen($filename, 'r')) 

        { echo "Cannot open file $filename"; exit; }

        

        $myvalue = fscanf ($handle, "%d");

        $myvalue++;

           

        fclose($handle);



        if (!$handle = fopen($filename, 'w')) 

        { echo "Cannot open file $filename"; exit; }



        if (fprintf ($handle, "%d", $myvalue) === FALSE) 

        { echo "Cannot write to file $filename"; exit; }

  

           echo "Success, wrote $myvalue to file $filename";

  

           fclose($handle);



?> 

</BODY>

</HTML>

What I want to do is open a file called "test.txt", read the value stored inside (an integer), increment the integer and store it back into the file. It's a kind of counter.

The above code gives the following error:

Fatal error: Call to undefined function: fprintf() in C:\Program Files\BadBlue\PE\files\test.php on line 21

But the functions printf, fwrite and fread are working and PHP is functional, part for this fprintf thing :eek: