Request::getClientIp()

Returns the client IP address.

This method can read the client IP address from the "X-Forwarded-For" header when trusted proxies were set via "setTrustedProxies()". The "X-Forwarded-For" header value is a comma+space separated list of IP addresses, the left-most being the original client, and each successive proxy that passed the request adding the IP address where it received the request from.

If your reverse proxy uses a different header name than "X-Forwarded-For", ("Client-Ip" for instance), configure it via "setTrustedHeaderName()" with the "client-ip" key.