Filters whether a post has changed.

By default a revision is saved only if one of the revisioned fields has changed.
This filter allows for additional checks to determine if there were changes.

$post_has_changed bool

Whether the post has changed.

$latest_revision WP_Post

The latest revision post object.

$post WP_Post

The post object.

File: wp-includes/revision.php. View all references

$post_has_changed = (bool) apply_filters( 'wp_save_post_revision_post_has_changed', $post_has_changed, $latest_revision, $post );