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I want to set an env variable that has the DOC_ROOT info but nothing 

SetEnv PROJECT_BASE %{ENV:DOC_ROOT}
SetEnv LAYOUT_HOME  %{ENV:PROJECT_BASE}"/html/app/wordpress/"

and then be able to access LAYOUT_HOME in php

How can I do this? The above is not working for me...

The problem is the base path is different on diff environments =/

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2 Answers 2

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SetEnv is a directive for mod_env, and mod_env doesn't support %{ENV:var} -- only mod_rewrite does this. Don't forget that apache is modular, and modules define their own directives. You can do this with mod_rewrite like this:

 RewriteRule .* -  [E=PROJECT_BASE:%{ENV:DOC_ROOT}]
  ... etc

I must ask, what are you really trying to do? There must be a better way. I can't think of any reason to define your LAYOUT_HOME variable in apache instead of php.

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  • Thanks. You're right PHP is a good place to do this. Just bending things to see what can and cant be done.. should or should not be done is the next step =]
    – qodeninja
    Commented Feb 18, 2011 at 0:40
  • +1 for the suggestion to set environment variables in a RewriteRule. I was having module execution order with SetEnv and RewriteCond and this was just the thing to get the results I wanted.
    – lambacck
    Commented Mar 4, 2011 at 14:51
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Use getenv, doc here.

It will get any Environment Variable, just use it to get the one you set on Apache.

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  • problem is its not working. Im not sure whats wrong or how to fix it
    – qodeninja
    Commented Feb 15, 2011 at 23:19
  • Can't you get that path from __FILE__, for example?
    – coredump
    Commented Feb 15, 2011 at 23:27

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