How to use comment_text filter in WordPress

comment_text filter

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

At WePlugins, we always prefer creating a custom WordPress Plugin while using hooks so nothing breaks when you update your WordPress Theme in the future.

In the examples below, we define a function weplugins_modify_comment_text_defaults which takes three parameters, and we register it using add_filter. The first parameter comment_text is the name of the hook, the second parameter weplugins_modify_comment_text_defaults is the name of the function 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 may need to remove a registered hook, and you can use remove_filter to remove the comment_text filter.

Parameters

Below are the 3 parameters required to use this hook.

• $comment_text: (string) Text of the current comment.
• $comment: (WP_Comment|null) The comment object. Null if not found.
• $args: (array) An array of arguments.

Live Example 1

Basic usage of the comment_text filter.

    function weplugins_filter_text($comment_text, $comment = null) {
        // Do something to the comment, possibly switching based on the presence of $comment
    }
    add_filter('comment_text', 'weplugins_filter_text', 10, 2);
    

Live Example 2

Modifying the comment text based on conditions.

    function weplugins_modify_comment_text_defaults($comment_text, $comment, $args) {
        // Update the $comment_text variable according to your website requirements and return this variable.
        // You can modify the $comment_text variable conditionally too if you want.
        return $comment_text;
    }
    // Add the filter
    add_filter('comment_text', 'weplugins_modify_comment_text_defaults', 10, 3);
    

Live Example 3

Removing a previously registered hook callback.

    remove_filter('comment_text', 'weplugins_modify_comment_text_defaults', 10, 3);
    

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 our team and we’d be happy to assist you.