array(1) {
  ["file"]=>
  array(5) {
    [0]=>
    string(5) "stuff"
    [1]=>
    string(24) "application/octet-stream"
    [2]=>
    string(14) "/tmp/php7Db7dk"
    [3]=>
    int(0)
    [4]=>
    int(1443)
  }
}
array(1) {
  ["file"]=>
  array(5) {
    ["name"]=>
    string(5) "stuff"
    ["type"]=>
    string(24) "application/octet-stream"
    ["tmp_name"]=>
    string(14) "/tmp/php7Db7dk"
    ["error"]=>
    int(0)
    ["size"]=>
    int(1443)
  }
}