جیسون گرفتن از فایل php

با یه کد Php دیگه این جیسون رو گرفتم دقیقا شبیه جیسونی که اندروید از فایل html دریافت میکنه ..اما جیسون پی اچ پی در لیست ویو نمایش داده نمیشه ..اینم جیسون با کد پی اچ  پی :

 {"contacts":[{"id":"1","name":"amir","email":"qou@gmail.com","address":"qw","gender":"22","phone":"33","mobile":"913383","home":"fddf","office":"ad"},{"id":"2","name":"karim","email":"wddsd@gmil.com","address":"sas","gender":"221","phone":"23","mobile":"935666","home":"df","office":"dsdd"},{"id":"3","name":"farhad","email":"sd@hh","address":"","gender":"2","phone":"2","mobile":"9123343","home":"sd","office":"d

 <?php



$host = "appishkhan.cloudsite.ir"; // host of MySQL server
$user = "****"; // MySQL user
$pwd = "****"; // MySQL user's password
$db = "frappi_Test"; // database name


$con=mysql_connect("appishkhan.cloudsite.ir", "****", "***")or die("cannot connect"); 
mysql_select_db("frappi_Test")or die("cannot select DB");
$sql = "select * from contacts"; 
$result = mysql_query($sql);
$json = array();

if(mysql_num_rows($result)){
while($row=mysql_fetch_assoc($result)){
$json['contacts'][]=$row;
}
}
mysql_close($con);
echo json_encode($json); 
?> 

اینم فایل جاوا..

 public class MainActivity extends ListActivity {

    private ProgressDialog pDialog;

  

 
  //  private static String url = "http://appishkhan.cloudsite.ir/webservis/contacts.html";
    private static String url = "http://appishkhan.cloudsite.ir/webservis/json.php";



    // JSON Node names
    private static final String TAG_CONTACTS = "contacts";
    private static final String TAG_ID = "id";
    private static final String TAG_NAME = "name";
    private static final String TAG_EMAIL = "email";
    private static final String TAG_ADDRESS = "address";
    private static final String TAG_GENDER = "gender";
    private static final String TAG_PHONE = "phone";
    private static final String TAG_MOBILE = "mobile";
   // private static final String TAG_PHONE_MOBILE = "mobile";
  //  private static final String TAG_PHONE_HOME = "home";
  //  private static final String TAG_PHONE_OFFICE = "office";

    // contacts JSONArray
    JSONArray contacts = null;

   
    ArrayList<HashMap<String, String>> contactList;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        contactList = new ArrayList<HashMap<String, String>>();

        ListView lv = getListView();



        lv.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> parent, View view,
                                    int position, long id) {
                // getting values from selected ListItem
                String name = ((TextView) view.findViewById(R.id.name))
                        .getText().toString();
                String cost = ((TextView) view.findViewById(R.id.email))
                        .getText().toString();
                String description = ((TextView) view.findViewById(R.id.mobile))
                        .getText().toString();

                // Starting single contact activity
                Intent in = new Intent(getApplicationContext(),
                        SingleContactActivity.class);
                in.putExtra(TAG_NAME, name);
                in.putExtra(TAG_EMAIL, cost);
                in.putExtra(TAG_ADDRESS, description);
               // in.putExtra(TAG_PHONE_MOBILE, description);
                startActivity(in);

            }
        });

        // Calling async task to get json
        new GetContacts().execute();
    }



    private class GetContacts extends AsyncTask<Void, Void, Void> {

        @Override
        protected void onPreExecute() {
            super.onPreExecute();
            // Showing progress dialog
            pDialog = new ProgressDialog(MainActivity.this);
            pDialog.setMessage("Please wait...");
            pDialog.setCancelable(false);
            pDialog.show();

        }

        @Override
        protected Void doInBackground(Void... arg0) {
           
            ServiceHandler sh = new ServiceHandler();

          
            String jsonStr = sh.makeServiceCall(url, ServiceHandler.GET);

            Log.d("Response: ", "> " + jsonStr);

            if (jsonStr != null) {
                try {
                    JSONObject jsonObj = new JSONObject(jsonStr);

                    // Getting JSON Array node
                    contacts = jsonObj.getJSONArray(TAG_CONTACTS);

                    // looping through All Contacts
                    for (int i = 0; i < contacts.length(); i++) {
                        JSONObject c = contacts.getJSONObject(i);

                        String id = c.getString(TAG_ID);
                        String name = c.getString(TAG_NAME);
                        String email = c.getString(TAG_EMAIL);
                        String address = c.getString(TAG_ADDRESS);
                        String gender = c.getString(TAG_GENDER);


                        JSONObject phone = c.getJSONObject(TAG_PHONE);
                        String mobile = phone.getString(TAG_MOBILE);
                       //x String mobile = phone.getString(TAG_PHONE_MOBILE);
                   //     String home = phone.getString(TAG_PHONE_HOME);
                     //   String office = phone.getString(TAG_PHONE_OFFICE);

                        // tmp hashmap for single contact
                        HashMap<String, String> contact = new HashMap<String, String>();

                        // adding each child node to HashMap key => value
                        contact.put(TAG_ID, id);
                        contact.put(TAG_NAME, name);
                        contact.put(TAG_EMAIL, email);
                        contact.put(TAG_ADDRESS, address);
                      //az  contact.put(TAG_PHONE_MOBILE, mobile);
                        contact.put(TAG_MOBILE, mobile);

                        // adding contact to contact list
                        contactList.add(contact);
                    }
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            } else {
                Log.e("ServiceHandler", "dade daryaft nashod");
            }

            return null;
        }

        @Override
        protected void onPostExecute(Void result) {
            super.onPostExecute(result);
            // Dismiss the progress dialog
            if (pDialog.isShowing())
                pDialog.dismiss();
          


            ListAdapter adapter = new SimpleAdapter(
                    MainActivity.this, contactList,
                    R.layout.list_item, new String[] { TAG_NAME, TAG_EMAIL,
                //az   TAG_PHONE_MOBILE }, new int[] { R.id.name,
                    TAG_ADDRESS }, new int[] { R.id.name,
                    R.id.email, R.id.mobile });

            setListAdapter(adapter);
        }

    }

}