title: get Client IP Symfony3
body: <p>How to get client ip address in form builder symfony?</p>
  
  <p>I have class CompanyType.php (AppBundle/Form/CompanyType.php)</p>
  
  <pre><code>$builder-&gt;add('ip', TextType::class, array(
      'label'=&gt; 'IP Address',
      'data' =&gt; '127.0.0.1'
  ));  
  </code></pre>
  
  <p>I want to get the current client ip address that someone is using and put it on data parameters. How do I do that?</p>