I'm very new to android programming. I'm more used to c# programming. I'm having problem sending POST data to a PHP page using HttpURLConnection. i know that POST data has to be encoded in ascii and sent to the server in bytes format. this is what i did, and i have been unsuccessful. I tried following several web instruction to no avail. URL url; HttpURLConnection conn; loginurl=new URL("https://mysite.com/test.php"); conn=(HttpURLConnection)loginUrl.openConnection(); conn.setRequestMethod("POST"); String charset = "UTF-8"; String qry =URLEncoder.encode("param1=1¶m2=2",charset); conn.setRequestProperty("Accept-Charset", charset); conn.setRequestProperty("Content-Type", "application/x-ww-form-urlencoded"); conn.setRequestProperty("Content-Length", ""+Integer.toString(qry.getBytes().length)); conn.setUseCaches(false); conn.setDoInput(true); conn.setDoOutput(true); //sendrequest DataOutputStream out= new DataOutputStream(conn.getOutputStream()); txtResponse.setText(out.toString()); out.writeBytes(qry); out.flush(); out.close(); in my PHP code, all i'm doing is spitting out the value of param1 and param 2. they all turned out empty. i tried modifying the parameter so that it will encode only the values, but not the key. however i still can't make it to work. i tried out.write(qry.getBytes); also tried out.write(("param1=1¶m2=2").getBytes)); nothing works! what am i doing wrong????