title: Add dynamic value to a hidden form field
body: <p>I'm having a contact form field named, <strong>addons</strong> with <strong>select options</strong></p>
  
  <p>it's code is </p>
  
  <pre><code>&lt;?php foreach ($addons as $options) { ?&gt;
  &lt;option value="&lt;?php echo $options-&gt;addon_name; ?&gt;"&gt;&lt;h5&gt;&lt;?php echo $options-&gt;addon_name; ?&gt;&lt;/h5&gt;&lt;/option&gt;
  &lt;?php } ?&gt;
  </code></pre>
  
  <p>Every addon have it's unique price. It can be fetch through <strong>$options->addon_price;</strong> I added only addon name in contact form so i'm getting only it's name once user submits form. Likewise, I need to get that addon price too without creating new field and asking users to select price in dropdown. </p>
  
  <p>Any ideas to do this ?</p>