array(6) {
  [0]=>
  string(32) "HTTP/1.1 503 Service Unavailable"
  [1]=>
  string(35) "Date: Wed, 23 May 2012 10:54:51 GMT"
  [2]=>
  string(14) "Server: Server"
  [3]=>
  string(32) "Vary: Accept-Encoding,User-Agent"
  [4]=>
  string(17) "Connection: close"
  [5]=>
  string(24) "Content-Type: text/plain"
}