iPhone-iOS and Android push notification script - PHP code

Here I am presenting before you  - how to perform the push notification process with PHP code which I have recently gone through.

Based on url GET parameter ( "type" ), the script will automatically execute the respective iOS or Android push notification process.



//*** Android Push Notification

if( isset($_GET['type']) && ($_GET['type'] == 'android')){

//*** Your API access key from Google Cloud Messaging( GCM )
define( 'API_ACCESS_KEY', 'YOUR GCM KEY' );


$registrationIds = array("YOUR DEVICE IDs" );

//*** Configure the bundle
$msg = array
(
    'message'       => 'Your message for push.',
    'title'         => 'Your title',
    'subtitle'      => 'Your subtitle',
    'tickerText'    => 'Your ticker text here',
    'vibrate'   => 1,
    'sound'     => 1
);

$fields = array
(
    'registration_ids'  => $registrationIds,
    'data'              => $msg
);

$headers = array
(
    'Authorization: key=' . API_ACCESS_KEY,
    'Content-Type: application/json'
);

$ch = curl_init();
curl_setopt( $ch,CURLOPT_URL, 'https://android.googleapis.com/gcm/send' );
curl_setopt( $ch,CURLOPT_POST, true );
curl_setopt( $ch,CURLOPT_HTTPHEADER, $headers );
curl_setopt( $ch,CURLOPT_RETURNTRANSFER, true );
curl_setopt( $ch,CURLOPT_SSL_VERIFYPEER, false );
curl_setopt( $ch,CURLOPT_POSTFIELDS, json_encode( $fields ) );
$result = curl_exec($ch );
curl_close( $ch );

echo $result;


}
elseif( isset($_GET['type']) && ($_GET['type'] == 'ios') )
{
   
//*** iPhone/iOS Push Notification  

    $ctx = stream_context_create();
    $passphrase = 'YOUR PASS PHRASE';
    $message = 'This is test push.';
    $deviceToken = 'DEVICE TOKEN';

    stream_context_set_option($ctx, 'ssl', 'local_cert', 'LOCATION TO YOUR .pem FILE');
    stream_context_set_option($ctx, 'ssl', 'passphrase', $passphrase);

   $fp = stream_socket_client('ssl://gateway.sandbox.push.apple.com:2195', $err,  $errstr,  30,  STREAM_CLIENT_CONNECT|STREAM_CLIENT_PERSISTENT, $ctx);



if (!$fp)
exit("Failed to connect: $err $errstr" . PHP_EOL);

echo 'Connected to APNS' . PHP_EOL;

//*** Configure the payload - Badge 0 will not set the notification badge over your app icon

$body['aps'] = array(
    'badge' => +1,
    'alert' => $message,
    'sound' => 'default'
);

$payload = json_encode($body);

//*** Create binary notification
$msg = chr(0) . pack('n', 32) . pack('H*', $deviceToken) . pack('n', strlen($payload)) . $payload;

$result = fwrite($fp, $msg, strlen($msg));

if (!$result)
    echo 'Message could not be delivered' . PHP_EOL;
else
    echo 'Message successfully delivered-'.$message. PHP_EOL;

//*** Close the connection to server
fclose($fp);
   
   
}



Issues - You may face :

1- If you get the connection issue to gateway for ios push, please check your pem file or either test it with
openssl s_client -connect gateway.sandbox.push.apple.com:2195 -cert your.pem

2- Once you create ipa for your application, Apple assumes it's now on production and so if your are getting issue like : not able to send the push from developer pem with the same code, you need to set the production pem after ipa creation.


Reference:
https://developer.apple.com/library/mac/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/Chapters/ProvisioningDevelopment.html