Using WordPress ‘comment_form_before’ PHP action

The comment_form_before WordPress PHP action fires before the comment form is displayed on a post or page.


add_action('comment_form_before', 'your_custom_function');
function your_custom_function() {
    // your custom code here


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More information

See WordPress Developer Resources: comment_form_before


Add a custom message above the comment form

Display a custom message above the comment form to provide users with instructions or information.

add_action('comment_form_before', 'add_custom_message_above_comments');
function add_custom_message_above_comments() {
    echo '<p><strong>Please keep your comments respectful and relevant.</strong></p>';

Display social sharing buttons above the comment form

Add social sharing buttons above the comment form to encourage users to share the content on social media.

add_action('comment_form_before', 'add_social_sharing_buttons');
function add_social_sharing_buttons() {
    // Replace with your preferred social sharing buttons code
    echo '<div class="social-sharing-buttons">Share: <a href="#">Twitter</a> | <a href="#">Facebook</a></div>';

Show a login prompt for logged-out users

Encourage logged-out users to log in before leaving a comment.

add_action('comment_form_before', 'display_login_prompt');
function display_login_prompt() {
    if (!is_user_logged_in()) {
        echo '<p><strong>Already have an account? <a href="/wp-login.php">Log in</a> to leave a comment.</strong></p>';

Display comment guidelines

Show comment guidelines or rules above the comment form to encourage appropriate comments.

add_action('comment_form_before', 'display_comment_guidelines');
function display_comment_guidelines() {
    echo '<p><strong>Comment Guidelines:</strong> No spam, self-promotion, or offensive language.</p>';

Add a custom captcha field

Integrate a custom captcha field above the comment form to prevent spam.

add_action('comment_form_before', 'add_custom_captcha_field');
function add_custom_captcha_field() {
    // Replace with your preferred captcha solution
    echo '<div class="custom-captcha">Please prove you are human: <input type="text" name="custom_captcha"></div>';