string(33) "yaan-ybgsntsbyxgs.qiye.hbksco.com"

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

array(2) {
  [0] => string(4) "yaan"
  [1] => string(12) "ybgsntsbyxgs"
}

int(4)

int(2)