array(7) {
  [0] => string(16) "xz.winwin7xz.com"
  [1] => string(15) "d.winwin7xz.com"
  [2] => string(21) "btfile.wsyhn.com:4433"
  [3] => string(14) "dl25.wsyhn.com"
  [4] => string(14) "down.wsyhn.com"
  [5] => string(20) "xiazai.winwin7xz.com"
  [6] => string(18) "resource.shwswl.cn"
}

NULL