Cannot limit post revisions

Question

I don't know why but I cannot limit post revisions even though I've added the code

define( 'WP_POST_REVISIONS', 3 );

Is there anything wrong in adding the code to wp-config file? Here are images of the problem.

Post revisions not limiting

Answer 1

The option works from the moment you add it to your wp-config.php file. You can try to remove the old revisions using something like this Just back-up your db first.