wordpress plugin extension that injects to recipe_rated hook

udemy-plus-emailer.php

<?php

/*
Plugin Name: Udemy Plus Emailer
*/

add_action('recipe_rated',function($data) {
     $post = get_post($data['postID']);
     $authorEmail = get_the_author_meta('user_email', $post->post_author);
     $subject= "Your recipe has received a new rating";
     $message="Your recipe {$post->post_title} has received a rating of {$data['rating']}";
     
     wp_mail($authorEmail, $subject,$message);
});