string(35) "wuhou-cddnkjyxzrgs.sy.niaoshifu.com"

array(4) {
  [0] => string(18) "wuhou-cddnkjyxzrgs"
  [1] => string(2) "sy"
  [2] => string(9) "niaoshifu"
  [3] => string(3) "com"
}

array(2) {
  [0] => string(5) "wuhou"
  [1] => string(12) "cddnkjyxzrgs"
}

int(5)

int(2)