string(38) "wenjiang-cdxjdqsbyxgs.sy.niaoshifu.com"

array(4) {
  [0] => string(21) "wenjiang-cdxjdqsbyxgs"
  [1] => string(2) "sy"
  [2] => string(9) "niaoshifu"
  [3] => string(3) "com"
}

array(2) {
  [0] => string(8) "wenjiang"
  [1] => string(12) "cdxjdqsbyxgs"
}