// Generate the rating stars field and handle submission function custom_star_rating_field($atts){ob_start();// HTML to display the star rating ?><div class="star-rating"><input type="radio" name="star_rating" value="1" id="star-1"><label for="star-1">&#9733;</label><input type="radio" name="star_rating" value="2" id="star-2"><label for="star-2">&#9733;</label><input type="radio" name="star_rating" value="3" id="star-3"><label for="star-3">&#9733;</label><input type="radio" name="star_rating" value="4" id="star-4"><label for="star-4">&#9733;</label><input type="radio" name="star_rating" value="5" id="star-5"><label for="star-5">&#9733;</label></div><?php return ob_get_clean()}// Register the shortcode to display the rating field add_shortcode('star_rating_field','custom_star_rating_field');