嘗試將C＃函數移植到PHP5中

我試圖將此函數轉換爲PHP，但不知何故它不會給出相同的結果。嘗試將C＃函數移植到PHP5中

public static string EncodePassword(string pass, string salt) { 
    byte[] bytes = Encoding.Unicode.GetBytes(pass); 
    byte[] src = Convert.FromBase64String(salt); 
    byte[] dst = new byte[src.Length + bytes.Length]; 
    byte[] inArray = null; 
    Buffer.BlockCopy(src, 0, dst, 0, src.Length); 
    Buffer.BlockCopy(bytes, 0, dst, src.Length, bytes.Length); 
    HashAlgorithm algorithm = HashAlgorithm.Create("SHA1"); 
    inArray = algorithm.ComputeHash(dst); 
    return Convert.ToBase64String(inArray); 
}

這是我對在PHP

function CreatePasswordHash($password, $salt) { 
    $salted_password = base64_decode($salt).$password; 
    $result = hash('SHA1',$salted_password,true); 
    return base64_encode($result); 
}

當然，這是行不通的。那麼我在這裏做錯了什麼？

這些是測試值：

$salt   = 'Xh2pHwDv3VEUQCvz5qOm7w=='; 
$hashed_value = '0U/kYMz3yCXLsw/r9kocT5zf0cc='; 
$password  = 'Welcome1!'; 

if ($hashed_value === CreatePasswordHash($password,$salt)) { 
    echo "Good job!"; 
}

編輯：基於從Martyx和休閒褲

function CreatePasswordHash($password, $salt) { 
    $upass = mb_convert_encoding($password,'UCS-2LE','auto'); 
    $salted_password = base64_decode($salt).$upass; 
    $result = hash('SHA1',$salted_password,true); 
    return base64_encode($result); 
}

來源

2010-08-18 Darko Miletic