Disable selected chosen options when it exists in database
<p>How can I disable the multiple select options when the item already exists in the database? Here's my form so far. Each item was stored in the database per row. I am using Laravel 5.2. Thanks</p>

<pre><code>&lt;form class="profile-detail-specialist skills-form" role="form" id="edit-skills"&gt;
  &lt;select name="service_skillsreq[]" class="chosen-select" multiple style="width:350px;" tabindex="4"&gt;
      @foreach($skills as $skill)
           &lt;option value="$skill-&gt;skills_name"&gt;{{$skill-&gt;skills_name}}&lt;/option&gt;
      @endforeach
           &lt;/select&gt;
    &lt;input type="submit" value="Save" class="skills-btn"&gt;
    &lt;button&gt;Cancel&lt;/button&gt;
    {{csrf_field()}}
 &lt;/form&gt;
</code></pre>