Hi guys,

I'm trying to edit a file (specified by the user) from within the ./articles/ directory of the script.

But, it is overwriting it the minute I load it and will not update (giving this error:
Warning: fwrite(): supplied argument is not a valid stream resource
)

Here is my code:
PHP Code:
<html>
<head>
<title>Edit Page</title>
    <style type="text/css">
    body {
    font-family: Helvetica, Arial;
    }
    </style>
<script type="text/javascript" src="http://www.rydgroup.net/editor/ckeditor.js"></script>
</head>

<?php 


$pagename = $_GET['pagename'];

$fn = './articles/'.$pagename.'.txt'; 
$file = fopen($fn, "w+"); 
$size = filesize($fn); 

if($_POST['editor1']) fwrite($fn, $_POST['editor1']); 

fclose($file); 

$incfile = file_get_contents("$fn");

?>
    
        <form action="" method="post"> 

            <textarea name="editor1">        
            <?php echo $incfile ?>    
            </textarea>
            <script type="text/javascript">
                CKEDITOR.replace( 'editor1' );
            </script>


<input type="submit" value="Update"/> 

</form>
Anyone have any ideas what is wrong?

Thanks