Google Android - это несложно

Код: Выделить всё

<?php 
	include "connect_db.php";

	if(isset($_GET['format']) && intval($_GET['num'])) {
 
	$format = strtolower($_GET['format']);
	$num = intval($_GET['num']);
 
	mysql_query('SET NAMES \'UTF8\'');
	$result = mysql_query('SELECT * FROM categories ORDER BY `category_id` DESC LIMIT ' . $num, $con) or die('MySQL Error.');
 
	if($format == 'json') {
 
	$сategories = array();
        while($category = mysql_fetch_array($result, MYSQL_ASSOC)) {
               $categories[] = array('category'=>$category);
	}
 
	$output = json_encode($categories);

Код: Выделить всё

[{"category":{"category_id":"37","category_name":"\u0441\u043f\u043e\u0440\u0442"}},{"category":{"category_id":"36","category_name":"fix"}},{"category":{"category_id":"35","category_name":"\u041f\u0441\u0438\u0445\u043e\u043b\u043e\u0433\u0438\u044f"}},{"category":{"category_id":"34","category_name":"\u041e\u041f Unix"}},{"category":{"category_id":"33","category_name":"\u041c\u0430\u0442\u0435\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0430\u043d\u0430\u043b\u0438\u0437"}}]

Код: Выделить всё

public class API {
	private HttpClient client;
	private HttpGet httpGet;
	private BufferedReader in;
	private JSONObject jObject;
	private ArrayList<Categories> categoriesArr = new ArrayList<Categories>();

	public API() {
		client = new DefaultHttpClient();
	}

	public ArrayList<Categories> getCategoryQuiz() {
		Log.d("1", "1");
		httpGet = new HttpGet(
				"http://superquiz.zz.mu/api.php?format=json&num=1");
		try {
			HttpResponse response = client.execute(httpGet);
			Log.d("status code", response.getStatusLine().getStatusCode() + "");
			in = new BufferedReader(new InputStreamReader(response.getEntity()
					.getContent()));
			StringBuffer sb = new StringBuffer("");
			String line = "";
			while ((line = in.readLine()) != null) {
				sb.append(line + "\n");
			}

			in.close();
			String result = sb.toString();
			/*
			 * jObject = new JSONObject(result.substring(result.indexOf("{"),
			 * result.lastIndexOf("}") + 1));
			 */
			Log.d("",result);
			
			jObject = new JSONObject(result);
			JSONArray arr = jObject.getJSONArray("category");
			for (int i = 0; i < arr.length(); i++) {
				JSONArray innerJsonArray = arr.getJSONArray(i);
		        JSONObject jsonObject = innerJsonArray.getJSONObject(0);
				String id = jsonObject.getString("category_id")
						.toString();
				String name = jsonObject.getString("category_name")
						.toString();
			}
		} catch (Exception e) {
			e.printStackTrace();
		}

		return categoriesArr;
	}
}

Код: Выделить всё

			JSONArray jsonMainArr = new JSONArray(result);
			Log.d("mainArr", jsonMainArr + "");

Код: Выделить всё

JSONArray jsonMainArr = new JSONArray(result);
			for (int i = 0; i < jsonMainArr.length(); i++) {
				JSONObject mainJsonObject = jsonMainArr.getJSONObject(i);
				Log.d("mainArr", mainJsonObject + "");
				JSONObject innerJsonObject = mainJsonObject.getJSONObject("category");
				System.out.println(innerJsonObject.getString("category_id"));
				System.out.println(innerJsonObject.getString("category_name"));
				
			}