finding, tracking, and storing user IPs
I am sure this is a really easy question but I’m not finding any answer: I want to know and follow the IP address of my site visitors across pages.
Specifically, I have an email subscribe plugin that verifies users by IP. And an event registration program that I will use to ask customers at purchase to opt-in to emails.
The registration program doesn’t store IPs in the db, so I need to be able to work the verification behind the scenes when I put the email addy in the subscriber table.
I thought I’d just do something like
$_SESSION['ip']on the PayPal return trip. But I’m not even getting the $_SESSION part to work.
Please point me in the right direction. thanks.
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