Avoid removing duplicate posts

Question

I have an arrays of IDs which may contain duplicate values.

Array
(
    [0] => 24
    [1] => 11
    [2] => 60
    [3] => 11
)

I'd like to loop through those IDs using WP Query and the post__in property.

Array
(
    'post__in'  => $posts,
    'post_type' => 'any,
    'orderby'   => 'post__in'
)

Everything work as expected, but duplicate IDs are removed by default.
Is there any way to prevent it?

Answer 1

It's a bit less efficient, but if you have an array of IDs, possibly including duplicates, and want to get the posts for each, I'd suggest use get_post() on each ID, giving you an array of posts.

$post_ids = [ 24, 11, 60, 11 ];
$posts    = array_map( 'get_post', $post_ids );

global $post;

foreach ( $posts as $post ) : setup_postdata( $post );
    // the_title(); etc.
endforeach;