Loading different META tags for each file ID

using meta tags with snippets

[hexdj]

I am using index.php?id=1010
1010.htm is one of my content files, that one in particular only has a p tag which gets loaded into index.php

<p>my contents is wrapped around by a p tag </p>

which works perfectly fine for my site, I was just wondering if its possible to use <meta> tags like "expires" or "content" for each file ID, even though they don't have html, body or any other tags, it's just a plain file with the <p> tag

will search engines pick that up? or do I need to edit those tags directly in my index.php file?

[jatar_k]

because the 1010.htm is included after the head portion of the document you can't really have meta in there. If you wanted to set different values into meta you would have to do it prior to outputting the head of the html document.