如何显示WordPress登录用户角色

function get_user_role() {
    global $current_user;
    $user_roles = $current_user->roles;
    $user_role = array_shift($user_roles);
    return $user_role;
}

<?php echo get_user_role(); ?>

<?php
global $current_user;
get_currentuserinfo();
echo &#39;用户名： &#39; . $current_user->user_login . "\n";
echo &#39;用户邮箱： &#39; . $current_user->user_email . "\n";
echo &#39;名字： &#39; . $current_user->user_firstname . "\n";
echo &#39;姓氏： &#39; . $current_user->user_lastname . "\n";
echo &#39;公开显示名： &#39; . $current_user->display_name . "\n";
echo &#39;用户 ID：&#39; . $current_user->ID . "\n";
?>