[Logikos]

I tested on my site and it seems nothing has happen. I replaced

PHP Code:

echo $attachmentinfo['filedata']; 


With

PHP Code:

    if (strpos($attachmentinfo['mimetype'],"image/jp")) { $isjpg = 1; }
    if ($isjpg && !$_GET['thumb']) {
        $filename = "/home/vbhacks/public_html/forum/watermark.png"; // use a PNG-24 to preserve transparency!

        $im = imagecreatefromstring($attachmentinfo['filedata']);
        imagealphablending($im, true);

        $watermark = imagecreatefrompng($filename);

        $y = imagesy($im) - imagesy($watermark);

        $w = imagesx($watermark);
        $h = imagesy($watermark);
    
        imagecopy($im, $watermark, 0, $y, 0, 0, $w, $h);

        imagejpeg($im, "", 80);
    } else {
        echo $attachmentinfo['filedata'];
    } 


And uploaded this in my forums directory. But nothing shows when i click on an attachment. Something im doing wrong?