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copied!<p>After some fiddling, this is the best I can come up with that works across servers without the need for multiple server conditions:</p> <pre><code>RewriteCond %{SCRIPT_FILENAME} ^(.+)\/index.php$ [NC] RewriteRule .* - [E=PATH:%1] RewriteCond %{QUERY_STRING} ^request=(.*) [NC] RewriteCond %{ENV:PATH}/cache/%1.html -f RewriteRule ^.+$ cache/%1.html [QSA,L] RewriteCond %{SCRIPT_FILENAME} !-f RewriteCond %{SCRIPT_FILENAME} !-d RewriteRule ^.+$ index.php?request=$0 [QSA,L] </code></pre> <p>The first part gets the full path of the directory that the request comes from and saves it as an environmental variable. index.php is trimmed from the end.</p> <p>The second part gets the internal redirect that contains the actual loaded URL, checks to see a cached version of the HTML exists and if it does carries out an internal redirect to it.</p> <p>The third part takes a "search engine friendly URL" and does an internal redirect to index.php?request={URL}.</p> <p>So in short, you load the url:</p> <p><a href="http://domain.com/page/sub-page" rel="nofollow">http://domain.com/page/sub-page</a></p> <p>The third condition set redirect this to:</p> <p><a href="http://domain.com/index.php?request=page/sub-page" rel="nofollow">http://domain.com/index.php?request=page/sub-page</a></p> <p>Then the second set (with the env. var. set in the first rule) sees if ./cache/page/sub-page.html exists on the server; if it does, that page is then displayed to the browser.</p> <p>N.B. to anyone who may find this of use that the third condition set is not neccesary, you could do this with just two rules. I use the redirect to index.php?request=555 as part of my PHP handling.</p>

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