Close comments on posts older than 30 days
New comments are only accepted on posts published in the last 30 days. Older posts keep their comments, but the form closes. Most spam goes to old posts.
<?php
// The same setting as Settings > Discussion, fixed in code.
add_filter( 'pre_option_close_comments_for_old_posts', static fn() => 1 );
add_filter( 'pre_option_close_comments_days_old', static fn() => 30 );
Good to know
Change 30 to the number of days you want. Pages and products follow the same rule.
In these packs
- Comments: Fewer spam comments and more control: close old posts, set minimum and maximum lengths, a spam trap, no links.