Problems with json.GetJSONArray("?") in Android - php

Question

I am trying to get my code work. I want to make a mysql connection
and send the data with json to my android app.
I guess it almost works but my logcat gives me this warning almost at the end:
"error parsing data" value [{"staff_phone":"123","staff_name":"fabian" etc.
I guess i did something wrong in my sql script. This is the script:
mysql_connect($db_host,$db_user,$db_pwd);
mysql_select_db($database);
$result = mysql_query("SELECT * FROM contactlijst");
$array = array();
while ($row = mysql_fetch_assoc($result))
{
array_push($array, $row);
}
print json_encode($array);
mysql_close();
These are my java codes:
public static JSONObject getJSONfromURL(String url){
//initialize
InputStream is = null;
String result = "";
JSONObject jArray = null;
//http post
try{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(url);
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();
}catch(Exception e){
Log.e("log_tag", "Error in http connection "+e.toString());
}
//convert response to string
try{
BufferedReader reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
result=sb.toString();
}catch(Exception e){
Log.e("log_tag", "Error converting result "+e.toString());
}
//try parse the string to a JSON object
try{
jArray = new JSONObject(result);
}catch(JSONException e){
Log.e("log_tag", "Error parsing data "+e.toString());
}
return jArray;
} }
AND this one:
ArrayList<HashMap<String, String>> mylist = new ArrayList<HashMap<String, String>>();
//Get the data (see above)
JSONObject json =
Database.getJSONfromURL("http://fabian.nostradamus.nu/Android/getcontactinfo.php");
try{
JSONArray contactinfo = json.getJSONArray("contactlijst");
//Loop the Array
for(int i=0;i < contactinfo.length();i++){
HashMap<String, String> map = new HashMap<String, String>();
JSONObject e = contactinfo.getJSONObject(i);
map.put("voornaam", e.getString("staff_name"));
map.put("achternaam", e.getString("staff_lastname"));
map.put("geboortedatum", e.getString("staff_dateofbirth"));
map.put("adres", e.getString("staff_address"));
map.put("postcode", e.getString("staff_address_postal"));
map.put("woonplaats", e.getString("staff_address_city"));
map.put("email", e.getString("staff_email"));
map.put("telefoon", e.getString("staff_phone"));
mylist.add(map);
}
}catch(JSONException e) {
Log.e("log_tag", "Error parsing data "+e.toString());
}
}
So what am I doing wrong?
Thanks alot!

Answer 1

getJSONArray() expects to be given a key whose value is an array. So it expects JSON that looks more like this:
{"contactlijst": [{"staff_phone":"123","staff_name":"fabian"...
If this doesn't work, try validating your JSON to ensure it is formatted correctly. I often use JSONLint for that purpose.