C#

private void btnEncode_Click(object sender, EventArgs e)<br />
{<br />
    try<br />
    {<br />
        string LogFileName = "Log.txt";<br />
        FileInfo fi = new FileInfo(LogFileName);<br />
        fi.Create().Close();<br />
        StreamWriter writeLog = new FileInfo(LogFileName).CreateText();<br />
        string encodePath = this.txtEncodePath.Text.Trim();<br />
        string decodePath = this.txtDecodePath.Text.Trim();<br />
        if (!(string.IsNullOrEmpty(encodePath) || string.IsNullOrEmpty(decodePath)))<br />
        {<br />
            new IEncodePHP(writeLog).GetFileInDirectory(encodePath, 1, decodePath);<br />
            MessageBox.Show("Congratulation you encode successfully!", "Congratulation");<br />
        }<br />
        else<br />
        {<br />
            MessageBox.Show("Can not encode the source path!", "Warning");<br />
        }<br />
        writeLog.Close();<br />
    }<br />
    catch (Exception ex)<br />
    {<br />
        MessageBox.Show("Can not encode the source path: " + ex.Message, "Warning");<br />
    }<br />
}

private string EncodePHP(string strEncoded)<br />
{<br />
    string variable1 = IRandom.GetRandomString(4, false, false);<br />
    string variable2 = IRandom.GetRandomString(3, false, false);<br />
    string variable3 = IRandom.GetRandomString(2, false, false);<br />
    string startVariable = " $" + variable1 + " = '";<br />
    string endVariable = "';";<br />
    string strDecode = "$" + variable3 + " = '$" + variable2 + " = base64_decode($" + variable1 + "); eval($" + variable2 + ");';";<br />
    string strEval = "eval($" + variable3 + ");";<br />
    strEncoded = startVariable + strEncoded + endVariable + strDecode + strEval;<br />
    return strEncoded;<br />
}