Posted on January 23, 2019 at 1:48 pm

Google Cloud Load Balancer saves the user’s IP in the X-Forwarded-For field:

X-Forwarded-For: -client IP(s)-, -global forwarding rule external IP-

More information can be found here:

https://cloud.google.com/load-balancing/docs/https/

Here is a sample PHP snippet to get the user’s IP address:

$user_ip = explode(",", $_SERVER['HTTP_X_FORWARDED_FOR'])[0];
print_r($user_ip);

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