Club Drupal

  $https_approaches = array();

  $https_approaches[] = t('Use secure pages or secure login module to redirect to SSL (https)');

  $https_approaches[] = t('Run entire site with SSL (https)');

  $https_approaches[] = t('Remove logon block and redirect all /user page to https via webserver redirect');

  $form['ssl'] = array('#type' => 'fieldset', '#title' => t('Require HTTPS on Credential Pages'));

  $form['ssl']['ldap_servers_require_ssl_for_credentials'] = array(

    '#type' => 'checkbox',

    '#title' => t('If checked, modules using LDAP will not allow credentials to

      be entered on or submitted to HTTP pages, only HTTPS. This option should be used with an

      approach to get all logon forms to be https, such as:') .

      theme('item_list', array('items' => $https_approaches)),

    '#default_value' => variable_get('ldap_servers_require_ssl_for_credentials', 0),

  );