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Find Files In Previous Folders With Mod_rewrite

09.08.2008
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        It recursively goes up in the directories structure until it finds the requested file name or fails with status 404

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
	RewriteRule ^[^/]*/(.*) $1

Assuming the file "/test/x.txt" exists, when requesting the url "/test/blabla/folder/xyz/x.txt", it will go up until finding the requested file:
/test/blabla/folder/x.txt
/test/blabla/x.txt
/test/x.txt (found...)