How to use get_adjacent_post_excluded_terms filter in WordPress

As a WordPress developer, you’ll often need to customize how your site behaves. One such way is through hooks, and today we’re diving into the get_adjacent_post_excluded_terms filter. This hook is pretty nifty when you want to manage the adjacent posts’ excluded terms dynamically. Let’s make it easy by exploring some live examples.

Example 1: Modifying Excluded Terms

Want to adjust the excluded terms for adjacent posts? Here’s a straightforward way to do it. This example modifies the excluded terms according to your specific requirements.

    function weplugins_modify_get_adjacent_post_excluded_terms_defaults($excluded_terms) { 
        // Update the $excluded_terms variable according to your website requirements
        return $excluded_terms; 
    }
    // add the filter
    add_filter("get_adjacent_post_excluded_terms", "weplugins_modify_get_adjacent_post_excluded_terms_defaults", 10, 1);
    

Example 2: Applying the Filter

Here’s how you can apply the get_adjacent_post_excluded_terms filter in your theme or plugin. This example shows the basic structure of using the filter.

    apply_filters("get_{$adjacent}_post_excluded_terms", $excluded_terms);
    

Example 3: Removing a Filter

If you need to remove this filter for some reason, here’s how you can do it. Just ensure the callback function name, priority, and arguments match what you used when adding it.

    remove_filter("get_adjacent_post_excluded_terms", "weplugins_modify_get_adjacent_post_excluded_terms_defaults", 10, 1);