posts_per_page设置为1，返回50个帖子

Question

我正在尝试以自定义帖子类型获取最新帖子：

$query = new WP_Query(array(
    'post_type'         => 'some_custom_post_type',
    'posts_per_page'    => 1,
    'orderby'           => 'date',
    'order'             => 'DESC'
));

出于某种奇怪的原因，这会返回50个帖子。我echo编辑了来自$query->request的SQL，我可以看到LIMIT设置为50：

SELECT SQL_CALC_FOUND_ROWS wp_posts.ID
FROM wp_posts
WHERE 1=1
    AND wp_posts.post_type = 'some_custom_post_type'
    AND (
        wp_posts.post_status = 'publish'
        OR wp_posts.post_status = 'private'
    )
ORDER BY wp_posts.post_date DESC
LIMIT 0, 50

切换post_limits代替posts_per_page会产生同样奇怪的结果。

---

为什么会发生这种情况，我该如何解决？

Answer 1

试

$query = new WP_Query(array(
    'post_type'         => 'some_custom_post_type',
    'posts_per_page'    => 1,
    'showposts'         => 1,
    'orderby'           => 'date',
    'order'             => 'DESC'
));