title: I can see env variable on server using printenv, but cannot get them in php
body: <p>I'd like to use certain env variables in my app, and when I try to get it </p>
  
  <pre><code>printenv | grep "MY_VARIABLE"
  </code></pre>
  
  <p>I get it out</p>
  
  <pre><code>MyVariable
  </code></pre>
  
  <p>But when I try to get it in php </p>
  
  <pre><code>print_r( getenv( 'MY_VARIABLE' ) );
  </code></pre>
  
  <p>I don't get anything out.</p>
  
  <p>I'm using EC2 instance on AWS, not sure if this helps.</p>
  
  <p>I also tried with <code>$_SERVER</code> and <code>$_ENV</code> but nothing...</p>