wp_get_post_revision( int|WP_Post $post, string $output = OBJECT, string $filter = ‘raw’ )

获取后期修订。
Gets a post revision.

目录锚点：#参数#源码

参数（Parameters）

源码（Source）

/**
 * Gets a post revision.
 *
 * @since 2.6.0
 *
 * @param int|WP_Post $post   The post ID or object.
 * @param string      $output Optional. OBJECT, ARRAY_A, or ARRAY_N.
 * @param string      $filter Optional sanitation filter. @see sanitize_post().
 * @return WP_Post|array|null Null if error or post object if success.
 */
function wp_get_post_revision(&$post, $output = OBJECT, $filter = 'raw') {
	if ( !$revision = get_post( $post, OBJECT, $filter ) )
		return $revision;
	if ( 'revision' !== $revision->post_type )
		return null;

	if ( $output == OBJECT ) {
		return $revision;
	} elseif ( $output == ARRAY_A ) {
		$_revision = get_object_vars($revision);
		return $_revision;
	} elseif ( $output == ARRAY_N ) {
		$_revision = array_values(get_object_vars($revision));
		return $_revision;
	}

	return $revision;
}