This snippet will allow you to automatically empty your post, page, or comment trash inside WordPress. Helpful when you need to keep performance high but don't want to manually go in and delete things from trash. By default, this snippet will delete items from the trash after being there for 7 days. As always, adjust it to your needs as you see …

snippet.php

<?php
// Download this snippet as a plugin and more at: https://wordbits.io/snippet/automatically-empty-post-page-comment-trash/
// Created by: jeffmatson
?>

<?php
define('EMPTY_TRASH_DAYS', 7 );