get_permalink from admin section

Hi all,

i need to fetch the permalink of all posts within an plugin settings page. When i try to do this:

$args = array(
            'nopaging' => 1,
            'post_type' => 'any',
            'post_status' => 'any'
        );
        $posts = get_posts($args);
        $permalinks = array();
        foreach ($posts as $post) {
            $permalinks[] += get_permalink($post->ID);
        }

I get this:

Array
(
    [0] => 0
    [1] => 0
    [2] => 0
    [3] => 0
    [4] => 0
    [5] => 0
    [6] => 0
    [7] => 0
    [8] => 0
)

Does anyone know how to get the permalinks?

Thx in advance,
cu poetter