title: Laravel Validation one of two fields must be filled
body: <p>I have two fields:</p>
  
  <p>QQ</p>
  
  <p>Email</p>
  
  <p>How do I set up a Validator object so that one of these fields must be filled? It doesn't matter which.</p>
  
  <hr>
  
  <pre class="lang-php prettyprint-override"><code>$messages = array(
      'email.required_without:qq' =&gt; Lang::get('messages.mustenteremail'),
      'email.email' =&gt; Lang::get('messages.emailinvalid'),
      'qq.required_without:email' =&gt; Lang::get('messages.mustenterqq'),
  );
  </code></pre>