So you have anchors like this...?<a href="http://www.mysite.com/getproduct.php?PRODUCTNUM=746463">something</a>
Yes, the anchors look like that. The goal is to get google to stop indexing the hundreds of dynamic pages generated by getproduct.php.
I guess the question is do these count as "thin" pages to google or are they ignored for ranking/pagerank, etc.
Normal pages you can put <meta name="robots" content="noindex,nofollow"> in the header. But php scripts like this that call an external site do not allow that.
You can use robots.txt to block a folder that contains getproduct.php, but I am not sure if search engines frown on that, or penalize you for blocking what would be hundreds of links from your site to this php script.