title: Wordpress query from usermeta?
body: <p>Let's say I want to display a user's billing address with this SQL:</p>
  
  <pre><code>SELECT um.meta_value
  FROM wp_usermeta um 
  INNER JOIN wp_users u ON u.ID = um.user_id
  WHERE um.meta_key = 'billing_address_1' AND u.user_login='1234'
  </code></pre>
  
  <p>I know I can use <code>$wpdb-&gt;get_results($myqueryhere)</code>, but is there a built-in Wordpress function (which I can't seem to web search) to get stuff from the wp_usermeta table that will look much cleaner?</p>