mod_rewrite rule and setenv

mod-rewrite setenv
H. Ferrence picture H. Ferrence · Nov 23, 2009 · Viewed 7.3k times · Source

Is there anyway to use the value set in a SetEnv on the RewriteRule statement?

Example:

SetEnv MY_SCRIPT myScript.php

rewriteEngine on
RewriteRule ^(.*)$  %{MY_SCRIPT} [L]

Answer

heiglandreas picture heiglandreas · Sep 2, 2011

According to http://httpd.apache.org/docs/2.0/env.html the SetEnv is called after the RewriteRule. Therefore it seems to be impossible to use any variable set via SetEnv in a RewriteRule- or RewriteCond-statement.

Using SetEnvIf on the other hand is called before the RewriteRule and therefore Variables set there can be used in a RewriteRule- or RewriteCond-statement.

So something like the following should work:

SetEnvIf SERVER_PROTOCOL "HTTP.*" MY_SCRIPT=myScript.php
rewriteEngine on
RewriteRule ^(.*)$  %{ENV:MY_SCRIPT} [L]

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