2020-05-01 / 5796阅 / 悠然
Check content for video and audio links to add as enclosures.
Will not add enclosures that have already been added and will remove enclosures that are no longer in the post. This is called as pingbacks and trackbacks.
(string)
(Optional)
Post content. If null, the post_content field from $post is used.
Default value: null
(int|WP_Post)
(Required)
Post ID or post object.
(null|bool) Returns false if post is not found.