string(43) "zhenjiang-tzsjyzhcbsbc.brand.gongxuqiao.com"

array(4) {
  [0] => string(22) "zhenjiang-tzsjyzhcbsbc"
  [1] => string(5) "brand"
  [2] => string(10) "gongxuqiao"
  [3] => string(3) "com"
}

array(2) {
  [0] => string(9) "zhenjiang"
  [1] => string(12) "tzsjyzhcbsbc"
}

int(2)