Email Notification on User Profile Change (WordPress)

functions_snippet.php

<?php 
/**
 * Add this snippet to your functions.php file
 */
function my_admin_notification_profile_update($userid) {

    $userdata = get_userdata($userid);
    $message = "A user profile has been updated\n\n";
    $message .= print_r($userdata,true);
    @wp_mail(get_option('admin_email'), 'User Profile Update', $message);

}
add_action('profile_update','my_admin_notification_profile_update');