wp_transition_post_status()

触发与过帐帖子状态相关的操作。

原型

wp_transition_post_status( string $new_status, string $old_status, WP_Post $post )

描述

保存帖子后，帖子状态将从一种状态“转换”到另一种状态，但这并不总是意味着状态在保存之前和之后实际已更改。此函数触发与该转换相关的许多动作挂钩：通用的“transition_post_status”动作，以及动态挂钩’$ old_status_to_ $ new_status’和’$ new_status_ $ post-> post_type’。请注意，该函数不会转换数据库中的post对象。

参数

$new_status (string) (Required) 过渡到此帖子状态。

$old_status (string) (Required) 以前的帖子状态。

$post (WP_Post) (Required) 发布数据。

源文件

路径：wp-includes/post.php

<?php
...
function wp_transition_post_status( $new_status, $old_status, $post ) {
	/**
	 * Fires when a post is transitioned from one status to another.
	 *
	 * @since 2.3.0
	 *
	 * @param string  $new_status New post status.
	 * @param string  $old_status Old post status.
	 * @param WP_Post $post       Post object.
	 */
	do_action( 'transition_post_status', $new_status, $old_status, $post );
	/**
	 * Fires when a post is transitioned from one status to another.
	 *
	 * The dynamic portions of the hook name, `$new_status` and `$old status`,
	 * refer to the old and new post statuses, respectively.
	 *
	 * @since 2.3.0
	 *
	 * @param WP_Post $post Post object.
	 */
	do_action( "{$old_status}_to_{$new_status}", $post );
	/**
	 * Fires when a post is transitioned from one status to another.
	 *
	 * The dynamic portions of the hook name, `$new_status` and `$post->post_type`,
	 * refer to the new post status and post type, respectively.
	 *
	 * Please note: When this action is hooked using a particular post status (like
	 * 'publish', as `publish_{$post->post_type}`), it will fire both when a post is
	 * first transitioned to that status from something else, as well as upon
	 * subsequent post updates (old and new status are both the same).
	 *
	 * Therefore, if you are looking to only fire a callback when a post is first
	 * transitioned to a status, use the {@see 'transition_post_status'} hook instead.
	 *
	 * @since 2.3.0
	 *
	 * @param int     $post_id Post ID.
	 * @param WP_Post $post    Post object.
	 */
	do_action( "{$new_status}_{$post->post_type}", $post->ID, $post );
}
...
?>

其他

英文文档：https://developer.wordpress.org/reference/functions/wp_transition_post_status/