Help with Implementing Recaptcha? (HTML, PHP)

Hi guys. I'm trying to set up a Recaptcha V3 challenge on an html contact form, but I don't know enough about PHP to add to the corresponding PHP form to only proceed with the required fields check and email submission if Recaptcha passes. Can anyone tell me where in my existing code to confirm a successful recaptcha, and what to put in there? The clientside stuff is so simple, but the serverside is Greek to me. Or if there's an easier way that doesn't even involve the PHP?

Trying to alter...

Read more