RewriteRule checking file in rewriten file path exists

Question

How can you use ModRewrite to check if a cache file exists, and if it does, rewrite to the cache file and otherwise rewrite to a dynamic file.

For example I have th

Answer 1

Another approach would be to first look if there is a chached representation available:

RewriteCond %{DOCUMENT_ROOT}/cache/$0 -f
RewriteRule ^pages/[^/\.]+$ cache/$0.html [L,QSA]

RewriteRule ^pages/([^/\.]+)$ pages.php?p=$1 [L,QSA]