add login option in wordpress menu code example
Example: how to create a logout button in wordpress
<?php if (is_user_logged_in()) : ?>
<a href="<?php echo wp_logout_url(get_permalink()); ?>">Logout</a>
<?php endif;?>
<?php if (is_user_logged_in()) : ?>
<a href="<?php echo wp_logout_url(get_permalink()); ?>">Logout</a>
<?php endif;?>