title: Enable GD support on PHP 7.2 in a Ubuntu 18.04
body: <p>I need to enable GD support on PHP 7.2 in a Ubuntu 18.04 installation and I've found this solution on the web:</p>
  <pre class="lang-none prettyprint-override"><code>sudo apt-get install php7.2-gd
  </code></pre>
  <p>Since I'm not an expert and I'm worried about the already running configuration files, I have to ask if this command</p>
  <ul>
  <li>will make a brand new installation of PHP with GD extension included</li>
  </ul>
  <p>or</p>
  <ul>
  <li>will just add the GD extension to my existing PHP installation and I don't have to worry about any configuration file changes</li>
  </ul>