title: Setting $_ENV (fka $HTTP_ENV_VARS) with nginx/php-fpm
body: <p>What is the equivalent of setenv in a apache environment?
  With apache I am able to for example set the env "SOMEENV" and access it in php via $_ENV['SOMEENV'] - but I have no idea how to do it with nginx+php-fpm.</p>
  
  <p>I initially thought that I just have to set ENV[SOMENEV]=test in the config of my php-fpm pool, but var_dump($_ENV) still returns nothing.</p>
  
  <p>Any hints?</p>