The PHP Header calls at the end of Phishing Kit Mailers

Inside this phishing kit

https://www.virustotal.com/en/file/3521521d631a33a6e79d282774a77e0ed21cf92fc8b901bbc19f1f370055fa37/analysis/1515876307/

There is a login.php

that ends up mailing the user's credentials to the attacker

But notice that last line above

header("Location: http://www.zoominfo.com/business/customer-success");

What is that you may ask?

The php header() method sends a raw HTTP Header per the manual

http://php.net/manual/en/function.header.php

Which header? The location

https://en.wikipedia.org/wiki/HTTP_location

"To ask a web browser to load a different web page"

So this line in the phishing kit is basically saying "After the user gives the bad guys your credentials, the bad guys mails them to himself, then he no longer cares about the user so he redirects them to the legitimate zoominfo.com (The site he phished) to make the victim think they were on the legit site all along.