Get user role of the logged in user

get-user-role.php

<?php
/**
 * Get User Role.
 *
 * This function can be used to get user role of a loggedin user.
 *
 * @since 1.0.0
 * 
 * @return string
 */
function get_user_role() {
    global $current_user;

    $user_roles = $current_user->roles;

    return array_shift( $user_roles );
}