Getting curly braces in output - GCM send multiple data - php

Question

I am trying to send data to device with GCM but getting curly braces in output(as below image). I'm new to php and I wonder how to fix this issue. Here is the part of PHP server code :
public function send_notification($registatoin_ids, $message, $title) {
// include config
include_once './config.php';
$url = 'https://android.googleapis.com/gcm/send';
$data = array("title" => $title, "message" => $message);
$fields = array(
'registration_ids' => $registatoin_ids,
'data' => $data
);
$headers = array(
'Authorization: key=' . GOOGLE_API_KEY,
'Content-Type: application/json'
);
// Open connection
$ch = curl_init();
// Set the url, number of POST vars, POST data
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
// Disabling SSL Certificate support temporarly
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($fields));
// Execute post
$result = curl_exec($ch);
if ($result === FALSE) {
die('Curl failed: ' . curl_error($ch));
}
// Close connection
curl_close($ch);
echo $result;
}
/////////
I changed the send_message.php like this and it fixed.
if (isset($_GET["regId"]) && isset($_GET["message"]) && isset($_GET["title"])) {
$regId = $_GET["regId"];
$messagem = $_GET["message"];
$titlem = $_GET["title"];
include_once './GCM.php';
$gcm = new GCM();
$registatoin_ids = array($regId);
$message = array("message" => $messagem);
$title = array($titlem);
$result = $gcm->send_notification($registatoin_ids, $messagem, $titlem);
echo $result;`
}

Answer 1

EDIT: sorry, with JSON GCM payload data should be an assoc array. Mixed up with an older flavor of the protocol. That said, what is your intent on the Android side like?
EDIT: dump the whole extra bundle.
Bundle b = intent.getExtras();
for(String k : b.keySet())
Log.d("tag", k + "=" + b.get(k).toString());

Answer 2

edited:
ok, I think your problem is you're posting the value {.....} with no key. it's like saying
http://..... com?{myjson:"stuff"}
I haven't reviewed the api, but it seems it should be something like post "data=".json_encode($fields);