Get wp_logout_url() To Redirect To Current Page on Any Page, Even Archives

Usually, wp_logout_url() is used to make a Log Out link. If you’re also passing get_permalink() as a parameter in order to stay on the same page after logging out, you may have something that looks like this:

<a href="<?php echo wp_logout_url( get_permalink() ); ?>">Logout</a>

But that doesn’t work to stay on the same page on category pages, tag pages, other taxonomy and/or archives pages, or on the blog page. To fix that, instead of using just get_permalink(), use this:

// Get permalink on any page

if ( is_tax() ) {
	$permalink = get_term_link( get_query_var( 'term' ), get_query_var( 'taxonomy' ) );
} elseif ( is_post_type_archive() ) {
	$permalink = get_post_type_archive_link( get_query_var('post_type') );
} elseif ( is_home() ) {
	$permalink = get_permalink( get_option( 'page_for_posts' ) );
} else {
	$permalink = get_permalink();
}

// Better logout link

<a href="<?php echo wp_logout_url( $permalink ); ?>">Logout</a>

That link will properly let a user log out and stay on the same page, even on archives pages or the main blog posts page.