Add Custom User Profile Fields in WordPress

Add the following code to your functions.php file to add your own fields to the user profile page in the WordPress admin.

// CUSTOM USER PROFILE FIELDS
function my_custom_userfields( $contactMethods ) {

    // ADD CONTACT CUSTOM FIELDS
    $contactMethods['contact_phone_office']     = 'Office Phone';
    $contactMethods['contact_phone_mobile']     = 'Mobile Phone';
    $contactMethods['contact_office_fax']       = 'Office Fax';

    // ADD ADDRESS CUSTOM FIELDS
    $contactMethods['address_line_1']       = 'Address Line 1';
    $contactMethods['address_line_2']       = 'Address Line 2 (optional)';
    $contactMethods['address_city']         = 'City';
    $contactMethods['address_state']        = 'State';
    $contactMethods['address_zipcode']      = 'Zipcode';
}
add_filter('user_contactmethods','my_custom_userfields',10,1);

To display these fields you can use one of the following methods:

the_author_meta('facebook', $current_author->ID)

<?php $current_author = get_userdata(get_query_var('author')); ?>
<p><a href="<?php echo esc_url($current_author->contact_phone_office);?>" title="office_phone"> Office Phone</a></p>

For a more robust approach to custom fields, see Beginner’s Guide to Advanced Custom Fields.