Android ส่งค่าแบบ POST ภาษาไทย มาจากฝั่ง android ส่งถึง php ไม่ได้หรือครับ

httpPost.setEntity(new UrlEncodedFormEntity(params)); 

httpPost.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));

public String getJSONUrl(String url,List<NameValuePair> params) {
		StringBuilder str = new StringBuilder();
		HttpClient client = new DefaultHttpClient();
		HttpPost httpPost = new HttpPost(url);
		
		try {
			httpPost.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));
			HttpResponse response = client.execute(httpPost);
			StatusLine statusLine = response.getStatusLine();
            
			int statusCode = statusLine.getStatusCode();
			if (statusCode == 200) { // Download OK
				HttpEntity entity = response.getEntity();
				InputStream content = entity.getContent();
				BufferedReader reader = new BufferedReader(new InputStreamReader(content));
				String line;
				while ((line = reader.readLine()) != null) {
					str.append(line);
				}
			} else {
				Log.e("Log", "Failed to download result..");
			}
		} catch (ClientProtocolException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
		return str.toString();
	}