How to use respond_link filter in WordPress

respond_link filter

Filters the respond link when a post has no comments.

To use the respond_link filter, first you have to register it using add_filter. You can write this code into the functions.php of your activated theme or in a custom WordPress Plugin.

We at WePlugins always prefer to create a custom WordPress Plugin while using hooks so nothing breaks when you update your WordPress Theme in the future.

In the below live example, we have defined a function modify_respond_link_defaults which takes 2 parameters and we registered it using add_filter. The first parameter respond_link is the name of the hook. The second parameter modify_respond_link_defaults is the name of the function which needs to be called. The third parameter is the priority of calling the hook if the same hook is used multiple times, and the last parameter is the number of arguments (if any) to be passed in the registered function.

Sometimes, you have to remove a registered hook, so you can use remove_filter to remove the respond_link filter.

Parameters

Below are the 2 parameters required to use this hook.

• $respond_link: (string) The default response link.
• $post_id: (int) The post ID.

Live Example 1: Basic Usage

Below is an example of how you can use this hook.

    function weplugins_modify_respond_link_defaults($respond_link, $post_id) { 
        // Update the $respond_link variable according to your website requirements and return this variable.
        return $respond_link; 
    }
    // Add the filter
    add_filter( "respond_link", "weplugins_modify_respond_link_defaults", 10, 2 );
    

Live Example 2: Conditional Modification

Here is another example where we modify the respond link conditionally based on the post ID.

    function weplugins_modify_respond_link_conditionally($respond_link, $post_id) { 
        if ($post_id == 42) {
            $respond_link = 'Custom link for post 42';
        }
        return $respond_link; 
    }
    // Add the filter
    add_filter( "respond_link", "weplugins_modify_respond_link_conditionally", 10, 2 );
    

Live Example 3: Removing the Hook

To remove a hook callback, use the example below.

    // Remove the filter
    remove_filter( "respond_link", "weplugins_modify_respond_link_defaults", 10, 2 );
    

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

Contact Us

If you’re having any trouble using this hook, please Contact Us. We’d be happy to assist you.