; Error Parsing HTML

Unknown Tag (form)

array(6) {
  ["type"]=>
  string(3) "tag"
  ["text"]=>
  string(85) "form method="POST" action="https://www.catprog.org/Downloads/Story2RoomKeys/keys.php""
  ["tagname"]=>
  string(4) "form"
  ["children"]=>
  array(9) {
    [0]=>
    array(2) {
      ["type"]=>
      string(4) "text"
      ["text"]=>
      string(43) "

Please type in a number 1 - 18

Number 1:"
    }
    [1]=>
    array(3) {
      ["type"]=>
      string(4) "text"
      ["text"]=>
      string(42) ""
      ["tagname"]=>
      string(5) "input"
    }
    [2]=>
    array(2) {
      ["type"]=>
      string(4) "text"
      ["text"]=>
      string(10) "
Number 2:"
    }
    [3]=>
    array(3) {
      ["type"]=>
      string(4) "text"
      ["text"]=>
      string(42) ""
      ["tagname"]=>
      string(5) "input"
    }
    [4]=>
    array(2) {
      ["type"]=>
      string(4) "text"
      ["text"]=>
      string(10) "
Number 3:"
    }
    [5]=>
    array(3) {
      ["type"]=>
      string(4) "text"
      ["text"]=>
      string(42) ""
      ["tagname"]=>
      string(5) "input"
    }
    [6]=>
    array(2) {
      ["type"]=>
      string(4) "text"
      ["text"]=>
      string(2) "

"
    }
    [7]=>
    array(3) {
      ["type"]=>
      string(4) "text"
      ["text"]=>
      string(43) ""
      ["tagname"]=>
      string(5) "input"
    }
    [8]=>
    array(2) {
      ["type"]=>
      string(4) "text"
      ["text"]=>
      string(1) "
"
    }
  }
  ["styles"]=>
  string(0) ""
  ["classes"]=>
  array(0) {
  }
}