help please registered. Proceed code

Hello to all is that I found this code on the internet and it is just what I need to finish my channel aver if I can help with this as I do work me with php code

file: regScreen

function GetLinkingCode()
  result = invalid

  xfer = CreateObject("roURLTransfer")
  xfer.SetURL("http://roku.hankotv.com/xml/getLinkingCode")
  response = xfer.GetToString()
  xml = CreateObject("roXMLElement")
  if xml.Parse(response)
    result = {
      code: xml.linkingCode.GetText()
      expires: StrToI(xml.linkingCode@expires)
    }
  end if

  return result
end function

function ValidateLinkingCode(linkingCode)
  result = false

  xfer = CreateObject("roURLTransfer")
  xfer.SetURL("http://roku.hankotv.com/xml/validateLinkingCode?code=" + linkingCode)
  response = xfer.GetToString()
  xml = CreateObject("roXMLElement")
  if xml.Parse(response)
    if UCase(xml.status.GetText()) = "SUCCESS"
      sec = CreateObject("roRegistrySection", "mySection")      
      sec.Write("deviceToken", xml.deviceToken.GetText())
      sec.Flush()

      result = true
    end if
  end if

  return result
end function

sub ShowLinkScreen()
  dt = CreateObject("roDateTime")

  ' create a roCodeRegistrationScreen and assign it a roMessagePort
  port = CreateObject("roMessagePort")
  screen = CreateObject("roCodeRegistrationScreen")
  screen.SetMessagePort(port)

  ' add some header text
  screen.AddHeaderText("Link Your Account")
  ' add some buttons
  screen.AddButton(1, "Get new code")
  screen.AddButton(2, "Back")
  ' Add a short narrative explaining what this screen is
  screen.AddParagraph("Before you can use this channel, you must link the channel to your account.")
  ' Focal text should give specific instructions to the user
  screen.AddFocalText("Go to http://www.example.com/roku, log into your account, and enter the following code.", "spacing-normal")

  ' display a retrieving message until we get a linking code
  screen.SetRegistrationCode("Retrieving...")
  screen.Show()

  ' get a new code
  linkingCode = GetLinkingCode()
  if linkingCode <> invalid
    screen.SetRegistrationCode(linkingCode.code)
  else
    screen.SetRegistrationCode("Failed to get code...")
  end if
 
  screen.Show()

  while true
    ' we want to poll the API every 15 seconds for validation,
    ' so set a 15000 millisecond timeout on the Wait()
    msg = Wait(15000, screen.GetMessagePort())
   
    if msg = invalid
      ' poll the API for validation
      if ValidateLinkingCode(linkingCode.code)
        ' if validation succeeded, close the screen
        exit while
      end if

      dt.Mark()
      if dt.AsSeconds() > linkingCode.expires
        ' the code expired. display a message, then get a new one
        d = CreateObject("roMessageDialog")
        dPort = CreateObject("roMessagePort")
        d.SetMessagePort(dPort)
        d.SetTitle("Code Expired")
        d.SetText("This code has expired. Press OK to get a new one")
        d.AddButton(1, "OK")
        d.Show()

        Wait(0, dPort)
        d.Close()
        screen.SetRegistrationCode("Retrieving...")
        screen.Show()

        linkingCode = GetLinkingCode()
        if linkingCode <> invalid
          screen.SetRegistrationCode(linkingCode.code)
        else
          screen.SetRegistrationCode("Failed to get code...")
        end if
        screen.Show()
      end if
    else if type(msg) = "roCodeRegistrationScreenEvent"
      if msg.isScreenClosed()
        exit while
      else if msg.isButtonPressed()
        if msg.GetIndex() = 1
          ' the user wants a new code
          code = GetLinkingCode()
          linkingCode = GetLinkingCode()
          if linkingCode <> invalid
            screen.SetRegistrationCode(linkingCode.code)
          else
            screen.SetRegistrationCode("Failed to get code...")
          end if
          screen.Show()
        else if msg.GetIndex() = 2
          ' the user wants to close the screen
          exit while
        end if
      end if
    end if
  end while
 
  screen.Close()
end sub

I have this file to generate the ping
makepin.php

    <?php

    $random=rand(1679616, 60466175);
    print base_convert($random,10,36);
    ?>

and I have this one to register when creating the code in mysql

checkcode.php

<?php

include "./conn.php";

    // Get args
    $code    = !empty($_REQUEST['code'])    ? mysql_real_escape_string($_REQUEST['code'])    : "";

    // Verify args

    if (empty($code)) die("Missing or invalid Code");

    $sql = "SELECT * FROM `users` WHERE code =\"" . $code."\"";
    //echo "sql follows";
    //echo "<br>";
    //echo $sql;
    // Get a specific result from the "example" table
    $result = mysql_query($sql) or die(mysql_error()); 

    // get the first (and hopefully only) entry from the result
    $row = mysql_fetch_array($result);
    // Print out the contents of each row into a table

    echo $row['code'];
?>

but I want to be able to do that when the code is confirmed that already exists can update another field the uniqueDeviceId

this

uniqueDeviceId=CreateObject("roDeviceInfo").GetDeviceUniqueId()
statusRequest=CreateObject("roUrlTransfer")
statusRequest.SetURL("http://example.com/index.php?d..."+uniqueDeviceId)
response=ParseJson(statusRequest.GetToString())