JSONObject arrayList parsing in php - php

Question

I am new to JSON. KIndly help me with the JSON parsing in php sent from android.
I have a class A, having members phoneNumber and name. I have an arrayList of object A
private ArrayList<A> contactList = new ArrayList<A>();
contactList.add(a1);
contactList.add(a2); [objects of A]
Now I am trying to send this arrayList to php server using JSON.
JSONObject json = new JSONObject();
json.put("contactList", contactList);
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("");
StringEntity se = new StringEntity("JSON: " + json.toString());
post.setEntity(se);
HttpResponse resP = client.execute(post);
Please let me know how to I parse it in the php server side to get phoneNumber and name of each object A.
I tried to create a same class A in the php server side and trying this way.
<?php
$contactList = array();
if(isset($_POST["contactList"])) {
$contactList = json_decode($_POST["contactList"]);
include_once './eachContactClass.php';
foreach ($contactList->contactList as $eachContact) {
$eachObj = new eachContactClass();
$eachObj = $eachContact;
$name = $eachObj->getName();
$phoneNumber = $eachObj->getPhone();
}
}
Please let me know whether the approach is correct, or kindly help me to correct it

Answer 1

First of all, may I suggest you to use a library for handling the JSON serialization/deserialization. GSON would be suited for your work.
Then, you should check the result JSON for validity before sending it to any remote server.
To parse it in PHP, use the json_decode() function that will return your an object representing your JSON. You can also get a hash if you prefer, just look in the doc.
I think your problem is that your JSON is invalid, as the JSONObject doesn't correctly serialize your ArrayList. Your should probably check that.