get_posts的include选项有效，但不限制帖子数

Question

I am using the include option for get_posts and the numberposts is not limiting the amount of posts I have set right now which is 1, it simply loads all include ids that are set. Is it not possible to limit the number of include posts ids? Here is my code.

$image_list = get_posts(array(
            'numberposts' =>  1,
            'include'   => '559,117,129',
            'post_type' => 'ft_gallery',
 ));

Answer 1

Use 'numberposts'=> 2 as described in the documentation: https://developer.wordpress.org/reference/functions/get_posts/ . It's an 'alias' for posts_per_page. Tested in shortcode on my localhost and it works

Answer 2

https://codex.wordpress.org/Template_Tags/get_posts

Note: The posts_per_page parameter does NOT work without setting the offset parameter.

Answer 3

So the solution is using post__in and making sure the list of numbers is in an array format. Thanks for everything efforts.

$image_list = get_posts(array(
        'numberposts' =>  1,
        'post__in'   => array([0] => 559 [1] => 117 [2] => 129 [3] => 496 [4] => 797),
        'post_type' => 'ft_gallery',
));