title: Wordpress: Get all values of a custom field
body: <p>I'm using Verve Meta Boxes. I want to make a menu out of one of the custom fields. How can I return all of the custom field values? For example, if I had a custom select field called "fruit" and as options I have "apples", "oranges", and "bananas", how could I get a complete list of those values, as an array perhaps? I can get the ones associated with a post:</p>
  
  <pre><code>get_post_custom_values('fruit')
  </code></pre>
  
  <p>…but I can't work out how to get the whole list.</p>
  
  <p>Thank you in advance!</p>