How to use index_rel_link filter in WordPress

index_rel_link filter

So, you’re diving into the world of WordPress hooks, eh? Let’s talk about the index_rel_link filter. This is one of those nifty hooks that can help you tweak and tune your WordPress site just the way you want it. And don’t worry, even if you’re not a coding guru, you can still get the hang of this. The basic idea is to register the hook using add_filter, and you can do this in your theme’s functions.php file or, even better, in a custom WordPress plugin. At WePlugins, we always recommend the plugin route so that your customizations stay safe from theme updates. Now, let’s dive into some examples to see how this is done in real life.

Example 1: Using the index_rel_link Filter

Here’s a simple example of how you can use the index_rel_link filter. We define a function called weplugins_modify_index_rel_link_defaults and register it using add_filter.

    function weplugins_modify_index_rel_link_defaults() {
        // Update the $path variable according to your website requirements and return this variable.
        // You can modify the $path variable conditionally too if you want.
        return $path;
    }
    // add the filter
    add_filter("index_rel_link", "weplugins_modify_index_rel_link_defaults");
    

Example 2: Applying the Filter

To use the hook, you apply the filter like so. This example shows how to apply the index_rel_link filter.

    apply_filters('index_rel_link');
    

Example 3: Removing the Filter

Sometimes, you might need to remove a registered hook. Here’s how you can remove the index_rel_link filter using remove_filter.

    remove_filter("index_rel_link", "weplugins_modify_index_rel_link_defaults");
    

Remember to provide the same callback function name, priority, and number of arguments while removing the hook callback.

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