How do I put text into a .doc and then write it to the server?

.doc as in a plain textfile, or .doc as in a wordfile?

As In a word file

You will likely be better off creating a .RTF file which can be read easily by Word. MS Word is not a simple file format.

there is an article over on phpbuilder dot com
that talks about how to create word documents on the fly

www dot phpbuilder dot com/columns/yunus20031124.php3

basically:

$word=new COM("Word.Application") or die("Cannot start word for you");
echo "Using word version ($word->Version)";

$word->visible =1 ;
$word->Documents->Add();
$word->Selection->Typetext("Writing Text ....");
$word->Documents[1]->SaveAs("c:test.doc");
$word->Quit();

Thanks for the link, dgeorge.

I have decided to do it in RTF format, how do I do this?

Using PHP for RTF
www dot phpbuilder dot com/columns/nair20020523.php3?page=1

Free RTF Class
www dot smartsystems dot ro/rtfgen_be.html

If your server is windows based, just use COM calls.
You can create RTF manually, but many possibilities are not allowed. One of the solutions - use word html document with word doctype (word can create the one if you save as web-page)

Try google or msn for more information