A friend of mine has asked for help to convert his site to a dynamic website. It has 500+ static html pages which he would like converted to PHP so that the site can run from one template, add/edit/delete articles quickly and generally be more efficient.
The problem is that the site is listed highly in search engines for certain terms with the static URLs EG http://www.his-site.com/sites/site215.html. Obviously converting to a dynamic system will loose this and affect his search engine ranking considerably.
I can convert the site to php with minimal fuss however we need to preserve these URLs. I have several ideas but I'm not clued up in this area so need some advice:
1) Issue 302 errors for all of the urls pointing to the new urls article.php?id=215
2) Mod rewrite? - I've no idea how to use it in this scenario.
3) Leave all the html files there with redirects and meta tags.
Any chance of some advice here? - This is a large professional site and while PHP/MySQL isn't a problem I can't let the guy down and need a rock solid solution.