REMOTE_ADDR

string(13) "54.198.17.102"

HTTP_X_FORWARDED_FOR

string(28) "54.198.17.102, 54.198.17.102"
array(2) {
  [0]=>
  string(13) "54.198.17.102"
  [1]=>
  string(14) " 54.198.17.102"
}