wp_is_post_revision( int|WP_Post $post )

Determines if the specified post is a revision.

Parameters

$post

(int|WP_Post) (Required) Post ID or post object.

Return

(int|false) ID of revision's parent on success, false if not a revision.

Source

File: wp-includes/revision.php 

function wp_is_post_revision( $post ) {
	$post = wp_get_post_revision( $post );
	if ( ! $post ) {
		return false;
	}

	return (int) $post->post_parent;
}

Used By

Used By Description
wp-includes/post-template.php: wp_post_revision_title()

Retrieve formatted date timestamp of a revision (linked to that revisions’s page).
wp-includes/post-template.php: wp_post_revision_title_expanded()

Retrieve formatted date timestamp of a revision (linked to that revisions’s page).
wp-includes/post.php: add_post_meta()

Adds a meta field to the given post.
wp-includes/post.php: delete_post_meta()

Deletes a post meta field for the given post ID.
wp-includes/post.php: update_post_meta()

Updates a post meta field based on the given post ID.

Changelog

Version Description
2.6.0 Introduced.

© 2003–2021 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/wp_is_post_revision