I'm trying to set environment variable(Apache/2.2.22) in my virtual host(not via .htaccess):
SetEnvIf Request_URI ^/path/to/something.php* EXTENSION=php
However, in php I see only $_SERVER['REDIRECT_REDIRECT_EXTENSION'], which is equal 'php'
Why there is prefix REDIRECT_REDIRECT_? I expected to get it via $_SERVER['EXTENSION'].
However, when I set
SetEnvIf Host test\.local RUN_CODE=test
It works properly, and I can get it via $_SERVER['RUN_CODE'].
Any advices?