REMOTE_ADDR

string(14) "54.242.200.172"

HTTP_X_FORWARDED_FOR

string(30) "54.242.200.172, 54.242.200.172"
array(2) {
  [0]=>
  string(14) "54.242.200.172"
  [1]=>
  string(15) " 54.242.200.172"
}