logan_x

Those are for pages.

I tried to make the function code for posts, but it still doesn’t work.

Here goes the code I made:

$postlist = get_posts();
$posts = array();
foreach ($postlist as $post) {
	$posts[] += $post->ID;
}

$current = array_search($post->ID, $posts);
$prevID = $posts[$current-1];
$nextID = $posts[$current+1];

// Link for previous post
if (!empty($prevID)) {
	echo '<div><a href="'. get_permalink($prevID) .'?variable=true">Msg. Anterior</a></div>';
}

// Link for next post
if (!empty($nextID)) {
	echo '<div><a href="'. get_permalink($nextID) .'?variable=true">Pr&oacute;xima Msg.</a></div>';
}