How to Limit Comment Length in WordPress

In WordPress, comments are an important way for users to share their thoughts and opinions on your content. However, sometimes users may write long and rambling comments that can be difficult to read and can detract from the overall user experience of your website.

In this article, we will show you how to limit comment length in WordPress using PHP code, which can help to keep comments focused and relevant.

To limit comment length in WordPress using PHP code, first, open the functions.php file in your WordPress theme’s folder using a text editor. Then, add the following code to the functions.php file, replacing “255” with the maximum number of characters you want to allow in comments:

function limit_comment_length($commentdata) {
    $max_chars = 255;

    if (strlen(trim($commentdata["comment_content"])) > $max_chars) {
        wp_die(
            __(
                "Comment is too long. Please limit your comment to 255 characters."
            )
        );
    }

    return $commentdata;
}
add_filter("preprocess_comment", "limit_comment_length");

Once you have added the code to the functions.php file, save the changes and upload it to your WordPress theme’s folder. Then, try to leave a comment on one of your blog posts and verify that the comment length is limited to the maximum number of characters you have set in the code.

In the code above, we have used the “preprocess_comment” filter to limit the comment length before the comment is saved to the database. This filter is triggered when a user submits a comment and it allows you to modify the comment data before it is saved. If the comment length is greater than the maximum number of characters, the code will display an error message and prevent the comment from being saved.

In conclusion, limiting comment length in WordPress can be a useful way to keep comments focused and relevant on your website. By using PHP code, you can easily customize the maximum number of characters allowed in comments and display an error message if a user tries to submit a comment that is too long. This can help to improve the user experience of your website and make it easier for users to read and engage with your content.

I hope you find this useful. Please comment if you have any questions.