User ID in Members Loop

Hello,

I’m using the code below successfully. However,I would like to replace the City with the User ID in the Members Loop. How would I do that? Thanks.

//Members Directory Page Meta Fields
add_action(‘after_setup_theme’,’kleo_my_member_data’);
function kleo_my_member_data()
{
global $kleo_config;
//this is the details field, right now it take the “About me” field content
$kleo_config[‘bp_members_details_field’] = ‘About me’;
//this display the fields under the name, eq: 36 / Woman / Divorced / Berlin. Modify with the names of the fields you want to appear there
$kleo_config[‘bp_members_loop_meta’] = array(
‘Height’,
‘City’,
);

}