PHP8 Change

This hasn’t been updated in years, so obviously it would be better to find a supported plugin to do the same thing, but if you just want to get it working in PHP8, go in to subpage-listing.php and change the last couple of lines to:

// doing it this way for compatibility with the Preformatted plugin
add_filter(‘init’, function($a) { add_filter(‘the_content’, ‘txfx_wp_subpage_display’, 9); });

That should fix it. create_function isn’t supported in PHP8 (nor should it be… *shudder*)