Retrieving specific rows of data - php

Question

I am trying to retrieve multiple rows of data. However, I am getting a error.
I want to retrieve rows of which the name (under the column name) = the name of the user. Which part of my code do I have to alter?
protected String doInBackground(String... args) {
// Building Parameters
try {
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("name", name));
// getting JSON string from URL
JSONObject json = jParser.makeHttpRequest(url_all_coupons, "GET", params);
// Check your log cat for JSON reponse
Log.d("All Products: ", json.toString());
// Checking for SUCCESS TAG
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
// products found
// Getting Array of Products
products = json.getJSONArray(TAG_PRODUCTS);
// looping through All Products
for (int i = 0; i < products.length(); i++) {
JSONObject c = products.getJSONObject(i);
// Storing each json item in variable
String couponexpires = c.getString(TAG_COUPONEXPIRES);
String coupondetails = c.getString(TAG_COUPONDETAILS);
// creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
// adding each child node to HashMap key => value
map.put(TAG_COUPONEXPIRES, couponexpires);
map.put(TAG_COUPONEXPIRES, coupondetails);
// adding HashList to ArrayList
couponsList.add(map);
My php code
<?php
// array for JSON response
$response = array();
// include db connect class
require_once __DIR__ . '/db_connect.php';
// connecting to db
$db = new DB_CONNECT();
if (isset($_GET["name"])) {
$name= $_GET['name'];
$result = mysql_query("SELECT * FROM coupons WHERE name = '$name'") or die(mysql_error());
// check for empty result
if (mysql_num_rows($result) > 0) {
$response["products"] = array();
while ($row = mysql_fetch_array($result)) {
// temp user array
$product = array();
$product["couponcreated"] = $row["couponcreated"];
$product["couponexpires"] = $row["couponexpires"];
$product["coupondetails"] = $row["coupondetails"];
array_push($response["products"], $product);
}
// success
$response["success"] = 1;
// echoing JSON response
echo json_encode($response);
} else {
// no products found
$response["success"] = 0;
$response["message"] = "No products found";
// echo no users JSON
echo json_encode($response);
}
?>
My logcat
5202-5251/info.androidhive.loginandregistration E/JSON Parser﹕ Error parsing data org.json.JSONException: Value <br of type java.lang.String cannot be converted to JSONObject
12-21 11:24:50.750 5202-5251/info.androidhive.loginandregistration W/dalvikvm﹕ threadid=11: thread exiting with uncaught exception (group=0x41b9f700)
12-21 11:24:50.755 5202-5251/info.androidhive.loginandregistration E/AndroidRuntime﹕ FATAL EXCEPTION: AsyncTask #1
java.lang.RuntimeException: An error occured while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:299)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:352)
at java.util.concurrent.FutureTask.setException(FutureTask.java:219)
at java.util.concurrent.FutureTask.run(FutureTask.java:239)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
at java.lang.Thread.run(Thread.java:841)
Caused by: java.lang.NullPointerException
at info.androidhive.loginandregistration.CouponPageActivity$LoadAllProducts.doInBackground(CouponPageActivity.java:103)
at info.androidhive.loginandregistration.CouponPageActivity$LoadAllProducts.doInBackground(CouponPageActivity.java:76)
at android.os.AsyncTask$2.call(AsyncTask.java:287)

Answer 1

There is syntax error in script(if condition not closed). use below script:
<?php
// array for JSON response
$response = array();
$response["success"] = 0;
$response["message"] = "No products found";
// include db connect class
require_once __DIR__ . '/db_connect.php';
// connecting to db
$db = new DB_CONNECT();
if (isset($_GET["name"])) {
$name = $_GET['name'];
$result = mysql_query("SELECT * FROM coupons WHERE name = '$name'") or die(mysql_error());
// check for empty result
if (mysql_num_rows($result) > 0) {
$response["products"] = array();
while ($row = mysql_fetch_array($result)) {
// temp user array
$product = array();
$product["couponcreated"] = $row["couponcreated"];
$product["couponexpires"] = $row["couponexpires"];
$product["coupondetails"] = $row["coupondetails"];
array_push($response["products"], $product);
}
// success
$response["success"] = 1;
$response["message"] = '';
} else {
// no products found
// echo no users JSON
}
}
echo json_encode($response);
?>