Where to pull up the IP address of the sender of the letter from the feedback form?

Question

PHP

Hello. Tell me, please, where can I pull up the IP of the computer from which the message was sent from the feedback form? Where to count it from? Do I need to install the geolocation module or how to do it?
Thank you!

Answer 1

$_SERVER["REMOTE_ADDR"];
you write down this value in the latent field in the form and you send together with the form.