[site-reviews] Dynamic custom form field labels

/**
 * @param array $fields
 * @param \GeminiLabs\SiteReviews\Arguments $args
 * @return array
 */
add_filter('site-reviews/review-form/fields', function ($fields, $args) {
    $key = array_search('rating', array_column($fields, 'name'));
    // make sure the rating field is in the form
    if (-1 === $key) {
        return $fields;
    }
    // make sure that this is a custom form (remove this if you are not using a custom Review Form!)
    if (empty($fields[$key]['custom'])) {
        return $fields;
    }
    // make sure that the form is assigning reviews
    if (empty($args->assigned_posts)) {
        return $fields;
    }
    $fields[$key]['label'] = sprintf('How do you rate %s', get_the_title((int) $args->assigned_posts));
    return $fields;
}, 20, 2);