PHP Environment variable not working

Hello, imm trying to se a new enviroment variable called “CI_ENV” but it doesn’t working. I tried to do it through the terminal and get it from $_ENV[‘CI_ENV’] but nothing… When i var_dump $_ENV its not even there. How the hell can i do it?

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It’s hard to know for sure without more details but if you are running your PHP script via your web server it will be running as www-data and would not have access to environment variables created under other user accounts.