Trying to pull Custom Field value into this code.

I’m hoping that there’s an easy solution to what I’m trying to do. I’m using Exec-PHP and some code to automatically pull related YouTube videos into my posts.

The code that is in the actual post is this…

include_once("youtube_class.php");
$theproduct = 'topic';
$videoshow = new youtube();
echo $videoshow->get_youtubevideo($theproduct);

If I replace ‘topic’ with the keywords I want related to the video it works fine, however I would like it to automatically pull from a custom field I have named ‘description’ which would automatically show youtube vids based on the content of the that custom value.

There has to be a way to do this. Here’s a link to the full code. Thanks.

https://www.quietaffiliate.com/dynamically-generating-webpages-inserting-video