post_comments_block_form_defaults

WordPress Version: 5.9

/**
 * Use the button block classes for the form-submit button.
 *
 * @param array $fields The default comment form arguments.
 *
 * @return array Returns the modified fields.
 */
function post_comments_block_form_defaults($fields)
{
    if (wp_is_block_theme()) {
        $fields['submit_button'] = '<input name="%1$s" type="submit" id="%2$s" class="%3$s wp-block-button__link" value="%4$s" />';
        $fields['submit_field'] = '<p class="form-submit wp-block-button">%1$s %2$s</p>';
    }
    return $fields;
}