Using PHP sessions with my android application to login

I am trying to make a login script for my android application, the script will send my email and password to the PHP server, verify the login and then create a PHP session so that the user stays logged in. This is my code,

HttpPost httppost = new HttpPost("http://server.com/login.php"); // Create a new HttpClient and Post Header HttpClient httpclient = new DefaultHttpClient();  public String login() {      String userID = "";      try {         // Add your data         List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);         nameValuePairs.add(new BasicNameValuePair("email", "e@e.com"));         nameValuePairs.add(new BasicNameValuePair("password", "admin"));         httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));          // Execute HTTP Post Request         HttpResponse response = httpclient.execute(httppost);          userID = EntityUtils.toString(response.getEntity());         //Log.v("Login response", "" + userID);        } catch (ClientProtocolException e) {         // TODO Auto-generated catch block     } catch (IOException e) {         // TODO Auto-generated catch block     }      return userID; }  

This script successfully sends data to my server and my PHP successfully logs the user on. I have placed "HttpClient httpclient = new DefaultHttpClient();" outside my main login method. This has helped store the session until I call upon another class, then it just resets the session again. So I am wondering how I can alter the code so that "httpclient" is somehow stored so I can keep the session and stay logged into my server. Thank you!

Source: http://stackoverflow.com/questions/11713926/using-php-sessions-with-my-android-application-to-login

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