piklist-sample-url-field-with-link

<?php

  piklist('field', array(
    type' => 'url' // HTML5 url field
    ,'field' => 'my_url'
    ,'template' => 'field'
    ,'attributes' => array(
	'class' => 'regular-text'
    )
  ));
	
  $my_url = get_post_meta($post->ID, 'my_url', true); // Get the value of the field above
	
  piklist('field', array(
    type' => 'html'
    ,'template' => 'field'
    ,'value' => !empty($my_url) ? '<a href="' . get_post_meta($post->ID, 'my_url', true) . '">Go Url</a>' : '' // if a url has been entered, show it. If not, show nothing.
  ));