Cannot post variable from android client to php server

Question

I develop an android code for transmit and received between android apps and PHP. The received part which is based on JSON, is properly working. I have tested by set variable manually in PHP code. However, when I have posted the variable from android to php, it cannot receive it. Anyone can tell me the problem ?

Answer 1

@Override
protected String doInBackground(Void... params) {


    ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();


    nameValuePairs.add(new BasicNameValuePair("username", <Your username here>));


    try {
        HttpClient httpclient = new DefaultHttpClient();
        HttpPost httppost = new HttpPost(<Your URL to php file>);
        httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs, "UTF-8"));
        HttpResponse response = httpclient.execute(httppost); // Execute Post to URL
        String st = EntityUtils.toString(response.getEntity()); // This is the result from php web
        Log.d(TK_Configuration.TAG, "In the try Loop" + st); // Still executing
        finalResult = st; // You should register a variable for finalResult;

    } catch (Exception e) {
        Log.d(TK_Configuration.TAG, "Connection error : " + e.toString());
    }
    return "OK";

}

protected void onPostExecute(String result) {
    super.onPostExecute(result);

    // After that, you will have final result and process to do with it here
    // Below is my simple code, please change it
    if(finalResult.equals("1")){
        Toast.makeText(context, context.getResources().getString(R.string.upload_bike_success), Toast.LENGTH_SHORT).show();

    }
    else{
        Toast.makeText(context, context.getResources().getString(R.string.upload_bike_fail), Toast.LENGTH_SHORT).show();
    }
    // End
}

Please try this, and one more point, you should use Gson library to decode JSON quickly to Java Object after you got JSON string from server.
Note: Replace TK_Configuration.TAG << by your TAG.

Answer 2

you have commented this line it means you are not passing values from Android

httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

remove comment from this line.

One more thing, you are passing username but from php you are trying to fetch value as $user = $_POST['name'];, both name must be same.