How to use comment_url filter in WordPress

comment_url filter

Filters the comment author’s URL for display.

To use the comment_url filter, you first need 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 examples below, we’ve defined a function weplugins_modify_comment_url_defaults which takes two parameters and we register it using add_filter. The first parameter comment_url is the name of the hook, the second parameter weplugins_modify_comment_url_defaults is the name of the function that 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 to the registered function.

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

Parameters

Below are the two parameters required to use this hook:

• $author_url : (string) The comment author’s URL.
• $comment_ID : (string) The comment ID as a numeric string.

Live Examples

Example 1: Basic Usage

This example demonstrates how to use the comment_url filter to modify the comment author’s URL.

    function weplugins_modify_comment_url_defaults($author_url, $comment_ID) { 
        // Update the $author_url variable according to your website requirements and return this variable.
        // You can modify the $author_url variable conditionally too if you want.
        return $author_url; 
    }
    // Add the filter
    add_filter("comment_url", "weplugins_modify_comment_url_defaults", 10, 2);
    

Example 2: Conditional URL Modification

In this example, the comment author’s URL is modified based on a specific condition.

    function weplugins_modify_comment_url_conditionally($author_url, $comment_ID) { 
        if ($comment_ID == 1) {
            $author_url = 'https://example.com/special-user';
        }
        return $author_url; 
    }
    // Add the filter
    add_filter("comment_url", "weplugins_modify_comment_url_conditionally", 10, 2);
    

Example 3: Removing the Filter

To remove a hook callback, use the example below.

    // Remove the filter
    remove_filter("comment_url", "weplugins_modify_comment_url_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 need any customization or are having trouble using this hook, please contact us and we’d be happy to assist you.