这段C#加密方式是什么意思，能翻译成PHP么？

Question

public static string Encrypt(string Text, string sKey)
{
    DESCryptoServiceProvider dESCryptoServiceProvider = new DESCryptoServiceProvider();
    byte[] bytes = Encoding.Default.GetBytes(Text);
    dESCryptoServiceProvider.Key = Encoding.ASCII.GetBytes(FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8));
    dESCryptoServiceProvider.IV = Encoding.ASCII.GetBytes(FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8));
    MemoryStream expr_5B = new MemoryStream();
    CryptoStream expr_68 = new CryptoStream(expr_5B, dESCryptoServiceProvider.CreateEncryptor(), CryptoStreamMode.Write);
    expr_68.Write(bytes, 0, bytes.Length);
    expr_68.FlushFinalBlock();
    StringBuilder stringBuilder = new StringBuilder();
    byte[] array = expr_5B.ToArray();
    for (int i = 0; i < array.Length; i++)
    {
        byte b = array[i];
        stringBuilder.AppendFormat("{0:X2}", b);
    }
    return stringBuilder.ToString();
}

问题出现的环境背景及自己尝试过哪些方法

相关代码

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你期待的结果是什么？实际看到的错误信息又是什么？