how to send notification to android from php

1<?php
2    // Replace with the real server API key from Google APIs
3    $apiKey = "your api key";
4
5    // Replace with the real client registration IDs
6    $registrationIDs = array( "reg id1","reg id2");
7
8    // Message to be sent
9    $message = "Your message e.g. the title of post";
10
11    // Set POST variables
12    $url = 'https://android.googleapis.com/gcm/send';
13
14    $fields = array(
15        'registration_ids' => $registrationIDs,
16        'data' => array( "message" => $message ),
17    );
18    $headers = array(
19        'Authorization: key=' . $apiKey,
20        'Content-Type: application/json'
21    );
22
23    // Open connection
24    $ch = curl_init();
25
26    // Set the URL, number of POST vars, POST data
27    curl_setopt( $ch, CURLOPT_URL, $url);
28    curl_setopt( $ch, CURLOPT_POST, true);
29    curl_setopt( $ch, CURLOPT_HTTPHEADER, $headers);
30    curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true);
31    //curl_setopt( $ch, CURLOPT_POSTFIELDS, json_encode( $fields));
32
33    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
34    // curl_setopt($ch, CURLOPT_POST, true);
35    // curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
36    curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode( $fields));
37
38    // Execute post
39    $result = curl_exec($ch);
40
41    // Close connection
42    curl_close($ch);
43    // print the result if you really need to print else neglate thi
44    echo $result;
45    //print_r($result);
46    //var_dump($result);
47?>