Add logout link when logged in, make it disappear when logged out?

Question

I am trying to display a logout link when users are logged in and make it disappear when they are not logged in.

The code I have so far works for the login and register links due to a plugin that I have installed, so 'login' and 'register' disappear just fine, now for logout I need some assistance... Here is the code:

<ul id="login-navigation">
<?php if ( is_user_logged_in() ) {
          $user = wp_get_current_user();
          echo 'Welcome <strong>'.$user->display_name.'!</strong> ';
} else { ?>
    <a href="/wp-login.php?action=register" class="simplemodal-register" >Register</a>
    <strong>or</strong>
<?php }
wp_loginout( get_permalink() ); ?>
</ul>

Answer 1

Try using wp_loginout(). It automatically handles those conditions.

Answer 2

Try this:

<ul id="login-navigation" >
    <?php
    if (is_user_logged_in()) {
        $user = wp_get_current_user();
        echo __('Welcome') . ' <strong>' . $user->display_name . '!</strong> ';
    } else { ?>
        <a href="<?php echo site_url('wp-login.php?action=register') ?>" class="simplemodal-register" ><?php echo __('Register'); ?></a>
        <strong>or</strong>
    <?php } ?>
    <?php wp_loginout( $_SERVER['REQUEST_URI'] ); ?>
</ul>