Hi
I am going mad

I have not used this for around 6 months and for some reason can not get a simple test page to work.
Here is my test.php file
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Untitled Document</title>
</head>
<body>
<?php include(test.txt); ?>
</body>
</html>
and here is my test.txt file
<snippet name="test.txt">
</snippet>
and here is the result of looking at test.php in my web browser
Warning: main(testtxt): failed to open stream: No such file or directory in /home/ngmcc/public_html/test.php on line 8
Warning: main(): Failed opening 'testtxt' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/ngmcc/public_html/test.php on line 8
Could someone please point me in the right direction, p.s. I am using Dreamweaver 8.