string(38) "shenzhen-gwbdjmjxszyxgs.qy.qiyanku.com"

array(4) {
  [0] => string(23) "shenzhen-gwbdjmjxszyxgs"
  [1] => string(2) "qy"
  [2] => string(7) "qiyanku"
  [3] => string(3) "com"
}

array(2) {
  [0] => string(8) "shenzhen"
  [1] => string(14) "gwbdjmjxszyxgs"
}

int(8)

int(2)