has_post_thumbnail


      apply_filters( 'has_post_thumbnail', $has_thumbnail, $post, $thumbnail_id )

参数

(bool) $has_thumbnail true if the post has a post thumbnail, otherwise false.

Required: 是
(int|WP_Post|null) $post Post ID or WP_Post object. Default is global `$post`.

Required: 是
(int|false) $thumbnail_id Post thumbnail ID or false if the post does not exist.

Required: 是

定义位置

相关勾子: post_thumbnail_id post_thumbnail_url post_thumbnail_size post_thumbnail_html admin_post_thumbnail_size

相关方法: has_post_thumbnail the_post_thumbnail set_post_thumbnail the_post_thumbnail_url get_the_post_thumbnail set_post_thumbnail_size

has_post_thumbnail – 这个函数用来检查一个文章是否有一个特色图片，也称为缩略图。它返回一个布尔值，表明该文章是否有特色图片。

过滤有文章缩略图的文章。

return (bool) apply_filters( 'has_post_thumbnail', $has_thumbnail, $post, $thumbnail_id );