PHP - Dayz player ID (44 characters long ID) from steam id

steamIdToUserIdDayz.php

<?php
/**
* This is how you get user id (bohemia id) like you see in .ADM files from steam id.
*/

$steam_id = "{STEAM_ID}";
$user_id = base64url_encode(hash('sha256', $steam_id, true));

function base64url_encode($data)
{
  $b64 = base64_encode($data);
  if ($b64 === false) {
    return false;
  }
  $url = strtr($b64, '+/', '-_');

  return $url;
}

Is there an implementation in C # ?. I'm dumb. I do not know PHP

Проблема была в том что hash нужно было считать не из байтов числа SteamID, а тупо из байтов строки которая представляет SteamID ...

Int64 SteamId = <UserSteamID>;
string sID = SteamId.ToString();
var chars = sID.ToCharArray();
byte[] bytes = new byte[chars.Length];
for (int i = 0; i < chars.Length; i++)
    bytes[i] = (byte)chars[i];
var sha = new SHA256CryptoServiceProvider();
            
var binaryData = sha.ComputeHash(bytes);
long arrayLength = (long)((4.0d / 3.0d) * binaryData.Length);
if (arrayLength % 4 != 0)
{
    arrayLength += 4 - arrayLength % 4;
}
char[] base64CharArray = new char[arrayLength];
System.Convert.ToBase64CharArray(binaryData,
                    0,
                    binaryData.Length,
                    base64CharArray,
                    0);
string DAYZID = string.Empty;
foreach (var c in base64CharArray)
    DAYZID += c;
Console.WriteLine(SteamId);
Console.WriteLine(DAYZID);