How to use found_posts_query filter in WordPress

Alright, let’s talk about the found_posts_query filter! If you’re a WordPress enthusiast like many of us, you’ll appreciate how powerful hooks can be. This particular filter is all about tweaking the query that retrieves the found posts. Whether you’re crafting a custom WordPress Plugin or updating your theme’s functions.php file, this hook can be a game-changer.

Before diving into examples, remember: it’s always wise to use a custom plugin for hooks. This ensures your tweaks remain intact even if you update your theme. Now, let’s explore some practical examples of the found_posts_query filter.

Example 1: Basic Modification

In this example, we define a function called weplugins_modify_found_posts_query_defaults. This function takes two parameters and modifies the $found_posts_query variable based on your website’s needs.

    function weplugins_modify_found_posts_query_defaults($found_posts_query, $query) {
        // Update the $found_posts_query variable according to your website requirements.
        return $found_posts_query;
    }
    add_filter("found_posts_query", "weplugins_modify_found_posts_query_defaults", 10, 2);
    

Example 2: Conditional Query Modification

Here’s how you can conditionally modify the $found_posts_query variable. This can be particularly useful if you want to adjust the query under specific conditions.

    function weplugins_conditional_found_posts_query($found_posts_query, $query) {
        if ($query->is_main_query() && !is_admin()) {
            // Custom logic for modifying the $found_posts_query.
        }
        return $found_posts_query;
    }
    add_filter("found_posts_query", "weplugins_conditional_found_posts_query", 10, 2);
    

Example 3: Removing the Hook

Sometimes, you might want to remove a previously registered hook. Here’s how you can do it using the remove_filter function.

    remove_filter("found_posts_query", "weplugins_modify_found_posts_query_defaults", 10, 2);
    

Ensure you provide the exact callback function name, priority, and number of arguments when removing a hook callback.