title: Required_if laravel with multiple value
body: <p>I have a dropdown menu like this:</p>
  
  <pre><code>&lt;select name="selection"&gt;
     &lt;option value="1"&gt;Option 1&lt;/option&gt;
     &lt;option value="2"&gt;Option 2&lt;/option&gt;
     &lt;option value="3"&gt;Option 3&lt;/option&gt;
  &lt;/select&gt;
  &lt;input type="text" name="stext"&gt;
  </code></pre>
  
  <p>I want the following in laravel:</p>
  
  <pre><code>public static myfunction(){
     $input = \Input::only('selection','stext');
     $rule = array(
        'selection' =&gt; 'required',
        'stext' =&gt; 'required_if:selection,2,3',
     );
     $validate = \Validator::make($input,$rule);
  }
  </code></pre>
  
  <p>But if I select option 1, <code>stext</code> is still required. Why?
  How can I fix it?</p>