Send push notification to a group

Question

I am not sure how to send a push notification to multiple tokens. With my script it seems to only send a push notification to one... as per Apple it would be better to have one open connection and keep it open and send messages when needed. Not sure how to do it on my php server...

$payload['aps'] = array('alert' => "New Cave report for ".$caveName,'badge' => 1, 'sound' => 'default');
$payload['condition'] = array('conditionID' => $ccID, 'caveName' => $caveName);
$payload = json_encode($payload);

// Connection Part
$apnsHost = 'gateway.sandbox.push.apple.com';
$apnsPort = 2195;
$apnsCert = '/var/www/web543/files/apns-dev.pem';

if (!file_exists($apnsCert) )
{
    echo "Certification file not found!";
} else
{
    $streamContext = stream_context_create();
    stream_context_set_option($streamContext,'ssl','local_cert',$apnsCert);

    $apns = stream_socket_client('ssl://' . $apnsHost . ':' . $apnsPort,$error,$errorString,2,STREAM_CLIENT_CONNECT,$streamContext);

    if ( !$apns )
    {
        echo "Connection Failed!".$errorString;
    } else
    {
        $db->query("SELECT DISTINCT token FROM notifications WHERE userID != '{$userID}'");
        if ($db->num_rows()>0) 
        {
            while ($db->next_record())
            {
                $apnsMessage = chr(0) . chr(0) . chr(32) . pack('H*', str_replace(' ', '', $db->f('token'))) . chr(0) . chr(strlen($payload)) . $payload;
                if ( fwrite($apns, $apnsMessage) === FALSE )
                {
                    echo "Can not write";
                }
            }
        }
    }

    fclose($apns);
}

some output of $apnsMessage

Token: 5a984922e19eab54f78fd54e24d5b02a3d30ccdbbeee34aadbdacaa687ee1261 Message: Z˜I"áž«T÷ÕN$Õ°*=0ÌÛ¾î4ªÛÚÊ¦‡îa†{"aps":{"alert":"New Cave report for Test Entry","badge":1,"sound":"default"},"condition":{"conditionID":"1","caveName":"Test Entry"}}
Token: c607acc70bd4885bf56f3b4827523023bf93a1d644626768ab0304bb3b4414dc Message: Æ¬ÇÔˆ[õo;H'R0#¿“¡ÖDbgh«»;DÜ†{"aps":{"alert":"New Cave report for Test Entry","badge":1,"sound":"default"},"condition":{"conditionID":"1","caveName":"Test Entry"}}
Token: 785ec3128972bd3d4c3e6fa1eeead97b73b0696e2361339a2467e6ba775b83ea Message: x^Ã‰r½=L>o¡îêÙ{s°in#a3š$gæºw[ƒê†{"aps":{"alert":"New Cave report for Test Entry","badge":1,"sound":"default"},"condition":{"conditionID":"1","caveName":"Test Entry"}}
Token: c592487e3c71e921d0b7a825b66ed5e58070fee709131535ac391f14febbcfdc Message: Å’H~Token: 061bc20ba3a0fc17c689e052b42b5789f502a52d43180ea114e3212077045315 Message: Â£ üÆ‰àR´+W‰õ¥-C¡ã! wS†{"aps":{"alert":"New Cave report for Test Entry","badge":1,"sound":"default"},"condition":{"conditionID":"1","caveName":"Test Entry"}}
Token: 26fb66fef67a122ca456f106363115285d4d7156e7c8ab6e51bd5bfa9bab2d03 Message: &ûfþöz,¤Vñ61(]MqVçÈ«nQ½[ú›«-†{"aps":{"alert":"New Cave report for Test Entry","badge":1,"sound":"default"},"condition":{"conditionID":"1","caveName":"Test Entry"}}

score 1 · Accepted Answer · answered Dec 28 '11 at 12:06

1

Ok. I found the problem.

When compiling as Debug it will send only on the first device when using the DEV certification. If I use Deployment like Ad-Hoc I have to use the Prod Servers and Prod Certificates.

Now everything works.

answered Dec 28 '11 at 12:06

Chris

3,581
8
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so do you mean only changing the apns certificates from dev to prod did the trick? – Nilesh Dec 29 '11 at 06:03
yes. and of course choose the prod push server instead of the sandbox server. This has to be for Deployment and Prod builds. – Chris Dec 29 '11 at 08:17
oh ok. Good to know that your issue is resolved :). On a side note, earlier I was able to implement this using dev certificates as well. Not sure though if anything has changed from Apple's side. – Nilesh Dec 29 '11 at 08:23

score 0 · Answer 2 · answered Dec 23 '11 at 07:18

I think you have to run this script in loop according to the count of token.

Means first get the token array and then according to the count make a loop. Then take one device token from the index 0 and run this script. Then selcect another token at index 1 and then run again this script.

To send push notification to multiple device you have connect each time to apple server and close connection and again open and send.This is the process.

score 0 · Answer 3 · edited May 23 '17 at 12:27

0

Yeah you should not be making and tearing down the socket connection every time you need to send the push. Once you establish the socket connection, you can write as many as push messages you want to any number of devices. What is the exact problem that you are observing? Is your socket connection getting dropped?

Have a look at this question if you need additional help : How to send Push Notification to multiple devices?

edited May 23 '17 at 12:27

Community

1
1

answered Dec 23 '11 at 07:53

Nilesh

5,955
3
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34

Are you sure the tokens are indeed getting replaced everytime? I mean whether proper device token is getting replaced? Can you put some logs and check that once? Are you getting "Can not write" statement in logs? If the connection is getting dropped automatically after fwrite call, it means probably your device token is invalid. – Nilesh Dec 23 '11 at 08:31
Can not write will is not getting called. Also the tokens are getting replaced... let me do few more checks on that – Chris Dec 23 '11 at 08:36
ok after doing few checks. Somehow only me is getting the messages. all other tokes seem to be ignored. the tokens are valid as I don't get any list back from the feedback service. – Chris Dec 23 '11 at 15:14
that seems strange. Can you try to log the actual binary data being sent in packets and verify it? Also try to hardcode only 2 device tokens and check if it works. – Nilesh Dec 26 '11 at 06:49

Send push notification to a group

3 Answers3