C#

Hello everybody!I want to ask you something. I want to send values from C# windows form application in php webpage.In other words send post values from C# to php.

The problem is that php script cannot read this values and preview this results which comes from C# app.Could you help me please?

Here is the C# code:

using System;
using System.Net;
using System.Web;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Diagnostics;
using System.Text;
using System.IO;

namespace WebRequestExample
{

    class WebPostRequest
    {
     
        public string Post(IDictionary<string, string> objects)
        {
            // Create a request using a URL that can receive a post. 
            WebRequest request = WebRequest.Create("http://127.0.0.1/sensor.php");
            // Set the Method property of the request to POST.
            request.Method = "POST";
            // Create POST data and convert it to a byte array.

            StringBuilder b = new StringBuilder();
            foreach (KeyValuePair<string, string> o in objects)
                b.Append("?").Append(HttpUtility.UrlEncode(o.Key)).Append("=").Append(HttpUtility.UrlEncode(o.Value ?? ""));            
            string postData = b.ToString(1, b.Length-1);            

            byte[] byteArray = Encoding.UTF8.GetBytes(postData);
            request.ContentType = "application/x-www-form-urlencoded";
            request.ContentLength = byteArray.Length;
            Stream dataStream = request.GetRequestStream();
            dataStream.Write(byteArray, 0, byteArray.Length);
            dataStream.Close();
            WebResponse response = request.GetResponse();


            if (((HttpWebResponse)response).StatusCode != HttpStatusCode.OK)
                return null;


            dataStream = response.GetResponseStream();
            StreamReader reader = new StreamReader(dataStream);
            string responseFromServer = reader.ReadToEnd();            
            reader.Close();

            dataStream.Close();
            response.Close();

            return responseFromServer;

        }
            
        class MainClass
        {
            public static void Main(string[] args)
            {
                /*NameValueCollection postData = new NameValueCollection();
                postData.Add("data", "hello world");
                WebClient client = new WebClient();
                client.Encoding = Encoding.UTF8;
                byte[] response = client.UploadValues("http://localhost/sensor.php", "POST", postData);
                string result = Encoding.UTF8.GetString(response);
                Console.WriteLine(result);*/
                WebPostRequest a = new WebPostRequest();
                IDictionary<string, string> postData = new Dictionary<string, string>();
                
                postData.Add("data", "123156564648989");
                Console.WriteLine(a.Post(postData));
                ///System.Diagnostics.Process.Start("http://localhost/sensor.php?data=123");               
                
                Console.ReadLine();
             }            
        } 
    }    
}

And a very simple php script to display the post data!
   <?
    <pre> print_r($_POST); 
	echo $_POST['data']; 
	echo '<br>';
	echo $_REQUEST['data']; 
	echo '<br>';
	var_dump( $_REQUEST); 
	echo '<br>';
	
	echo '<file_get_contents>';
	$postdata = trim(file_get_contents('php://input'));
	$postdata = urldecode($postdata); 
	var_dump( $postdata);
	echo '<br>';	 
?>