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copied!<p>For this solution, I have followed the following rules:</p> <ol> <li>If the user tries to load <code>/something.php</code> they should be externally redirected to <code>/something</code>.</li> <li>If the user tries to load <code>/something</code> then they should be internally redirected to <code>/something.php</code>.</li> <li>If the user passed any query string parameters to the URL then these should be preserved through the redirects.</li> <li>If the user tries to load a different file which really exists on the filesystem (a stylesheet, image etc) then this should be loaded as is.</li> </ol> <p>And here's the final set of mod_rewrite magic:</p> <pre><code>RewriteEngine on RewriteBase / ## Always use www. RewriteCond %{HTTP_HOST} ^mysite\.com$ [NC] RewriteRule ^(.*)$ http://www.mysite.com/$1 [L,R=301] # Change urlpath.php to urlpath ## Only perform this rule if we're on the expected domain RewriteCond %{HTTP_HOST} ^www\.mysite\.com$ [NC] ## Don't perform this rule if we've already been redirected internally RewriteCond %{QUERY_STRING} !internal=1 [NC] ## Redirect the user externally to the non PHP URL RewriteRule ^(.*)\.php$ $1 [L,R=301] # if the user requests /something we need to serve the php version if it exists ## Only perform this rule if we're on the expected domain RewriteCond %{HTTP_HOST} ^www\.mysite\.com$ [NC] ## Perform this rule only if a file with this name does not exist RewriteCond %{REQUEST_FILENAME} !-f ## Perform this rule if the requested file doesn't end with '.php' RewriteCond %{REQUEST_FILENAME} !\.php$ [NC] ## Only perform this rule if we're not requesting the index page RewriteCond %{REQUEST_URI} !^/$ ## Finally, rewrite the URL internally, passing through the user's query string ## using the [qsa] flag along with an 'internal=1' identifier so that our first ## RewriteRule knows we've already redirected once. RewriteRule ^(.*)$ $1.php?internal=1 [L, QSA] </code></pre>

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