string(33) "nanshan-szsbmjgxx.qiye.hbksco.com"

array(4) {
  [0] => string(17) "nanshan-szsbmjgxx"
  [1] => string(4) "qiye"
  [2] => string(6) "hbksco"
  [3] => string(3) "com"
}

int(2)