title: Where to Set Composer Environment Variables
body: <p>I don't want to disable <code>Xdebug</code>, I don't care that it's slower, so I see there is an environment variable <code>COMPOSER_DISABLE_XDEBUG_WARN</code> and the docs mention setting it in the config.</p>
  
  <p>So, I opened my global <code>/Users/username/.composer/config.json</code> and add:</p>
  
  <pre><code>{
      "config": {
          "COMPOSER_DISABLE_XDEBUG_WARN": true
      }
  }
  </code></pre>
  
  <p>No change.</p>
  
  <p>Where or how do I set this environment variable to get rid of this damn message?</p>