wp_is_post_revision( int|WP_Post $post )

Determines if the specified post is a revision.

Parameters

$post

(Required) Post ID or post object.

Return

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

Source

File: wp-includes/revision.php 

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

	return (int) $post->post_parent;
}

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Related

Used By

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: update_post_meta()

Update post meta field based on post ID.
wp-includes/post.php: add_post_meta()

Add meta data field to a post.
wp-includes/post.php: delete_post_meta()

Remove metadata matching criteria from a post.

Changelog

Changelog
Version Description
WP-2.6.0 Introduced.