title: How to ignore search string case when using WP_User_Query?
body: <p>Using the following code, how can I do the search by ignoring the case of the field in the database :</p>
  
  <pre><code>    $args = array(
      'meta_query' =&gt; array(
          'relation' =&gt; 'OR',
          array(
              array(
              'key'     =&gt; 'province',
              'value'   =&gt; 'kzn',
              'compare' =&gt; '='
              ),
          )
      )
   );
  $user_query = new WP_User_Query( $args );
  </code></pre>
  
  <p>In the above example, 'kzn' is stored as KZN in the database. The input search string can be 'Kzn', or 'kZn... etc. The value to search for can also be a mixed bag as far as it's case goes. So I guess what I am looking for is a war to search for uppercase(databasefield) in the value field, if that makes sense.</p>
  
  <p>Thank you.</p>