array(6) {
  ["url"]=>
  NULL
  ["a"]=>
  string(1) "b"
  ["fk"]=>
  object(CURLFile)#1 (3) {
    ["name"]=>
    string(50) "/home/app420/public_html/test_array_iter/index.php"
    ["mime"]=>
    string(0) ""
    ["postname"]=>
    string(0) ""
  }
  ["f"]=>
  array(3) {
    ["ccc"]=>
    object(CURLFile)#2 (3) {
      ["name"]=>
      string(50) "/home/app420/public_html/test_array_iter/index.php"
      ["mime"]=>
      string(0) ""
      ["postname"]=>
      string(0) ""
    }
    ["fu"]=>
    string(2) "aa"
    [0]=>
    string(3) "ooo"
  }
  ["xx"]=>
  string(6) "asdasd"
  [0]=>
  string(3) "ooo"
}
array(3) {
  ["_data"]=>
  string(116) "a:5:{s:3:"url";N;s:1:"a";s:1:"b";s:1:"f";a:2:{s:2:"fu";s:2:"aa";i:0;s:3:"ooo";}s:2:"xx";s:6:"asdasd";i:0;s:3:"ooo";}"
  ["fk"]=>
  object(CURLFile)#1 (3) {
    ["name"]=>
    string(50) "/home/app420/public_html/test_array_iter/index.php"
    ["mime"]=>
    string(0) ""
    ["postname"]=>
    string(0) ""
  }
  ["f[ccc]"]=>
  object(CURLFile)#2 (3) {
    ["name"]=>
    string(50) "/home/app420/public_html/test_array_iter/index.php"
    ["mime"]=>
    string(0) ""
    ["postname"]=>
    string(0) ""
  }
}