modify REQUEST_URI in .htaccess

I want server side script to see modified uri instead of the uri that was typed in browser.

Just like in the following example:

RewriteCond %{REQUEST_URI} (.*)abcdef$
RewriteRule ^(.*)$ /test/ [L] 

But the server side script still sees abcdef

Is it possible to modify REQUEST_URI liter开发者_开发百科ally?

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use [R] instead of [L]. this is just some text.