wp_is_post_autosave() WordPress Function

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

	if ( false !== strpos( $post->post_name, "{$post->post_parent}-autosave" ) ) {
		return (int) $post->post_parent;
	}

	return false;
}
Used By	Description
wp-includes/rest-api/endpoints/class-wp-rest-autosaves-controller.php:WP_REST_Autosaves_Controller::prepare_item_for_response()	Prepares the revision for the REST response.
wp-admin/includes/revision.php:wp_prepare_revisions_for_js()	Prepare revisions for JavaScript.
wp-includes/post-template.php:wp_post_revision_title()	Retrieves formatted date timestamp of a revision (linked to that revisions’s page).
wp-includes/post-template.php:wp_post_revision_title_expanded()	Retrieves formatted date timestamp of a revision (linked to that revisions’s page).
wp-includes/post-template.php:wp_list_post_revisions()	Displays a list of a post’s revisions.
wp-includes/class-wp-xmlrpc-server.php:wp_xmlrpc_server::wp_getRevisions()	Retrieve revisions for a specific post.
wp-includes/class-wp-xmlrpc-server.php:wp_xmlrpc_server::wp_restoreRevision()	Restore a post revision