APNS Bulk Not delivering but works individually - php

Question

Building from samplePush.php I have been able to build a transactional APNS script for my app. This works great and gives me the ability to one to one push notifications to a phone.
I need to move this to batch notifications and so built:
$APNSMessage = 'Test from APNS Bulk!';
// Bulk PUSH is the service designed to send iOS PUSH Notifications to hundreds of devices all at the same time using the same APNS connection.
function bulkPushToAPNS($TokenArray, $MessageToPush) {
echo "Sending to " . count($TokenArray) . " Devices ";
$body = array('aps' => array('alert' => $MessageToPush, 'badge' => 1, 'sound' => 'default'));
$ctx = stream_context_create();
stream_context_set_option($ctx, 'ssl', 'local_cert', 'apnsCert.pem');
$fp = stream_socket_client('ssl://gateway.sandbox.push.apple.com:2195', $err, $errstr, 60, STREAM_CLIENT_CONNECT, $ctx);
if (!$fp) {
print "Failed to connect $token $err $errstrn";
return;
}
print "Connection OK ";
$payload = json_encode($body);
foreach($TokenArray as $token) {
$msg = chr(0) . chr(0) . pack("n",32) . pack('H*', str_replace(' ', '', $token)) . pack("n",strlen($payload)) . $payload;
print $payload;
//fwrite($fp, $msg);
$result = fwrite($fp, $msg, strlen($msg));
if (!$result)
echo 'Message not delivered' . PHP_EOL;
else
echo 'Message successfully delivered' . PHP_EOL;
}
fclose($fp);
}
$TokensToPushToArray = array('ThisIsTokenOne', 'ThisIsTokenTwo');
bulkPushToAPNS($TokensToPushToArray, $APNSMessage);
When the script runs it gets passed an array of iOS tokens that need this message.
The output of the script is:
Sending to 2 Devices Connection OK {"aps":{"alert":"Test from APNS Bulk!","badge":1,"sound":"default"}}Message successfully delivered {"aps":{"alert":"Test from APNS Bulk!","badge":1,"sound":"default"}}Message successfully delivered
So the feedback from Apple is that these are getting delivered. But nothing is making it to the handhelds.
If I run each device token individually they work, so its something in the batch thats playing up..? Any ideas?

Answer 1

Answering my own question here;
Moved the code around so that the foreach is inside the connection:
$ctx = stream_context_create();
stream_context_set_option($ctx, 'ssl', 'local_cert', 'apnsCert.pem');
// Open a connection to the APNS server
$fp = stream_socket_client(
'ssl://gateway.sandbox.push.apple.com:2195', $err,
$errstr, 60, STREAM_CLIENT_CONNECT|STREAM_CLIENT_PERSISTENT, $ctx);
if (!$fp)
exit("Failed to connect: $err $errstr" . PHP_EOL);
echo 'Connected to APNS' . PHP_EOL;
foreach ($APNSTokens as $APNSToken) {
// Create the payload body
$body['aps'] = array(
'alert' => $APNSMessage,
'sound' => 'default',
'badge' => 1
);
// Encode the payload as JSON
$payload = json_encode($body);
// Build the binary notification
$msg = chr(0) . pack('n', 32) . pack('H*', $APNSToken) . pack('n', strlen($payload)) . $payload;
// Send it to the server
$result = fwrite($fp, $msg, strlen($msg));
if (!$result)
echo 'Message not delivered' . PHP_EOL;
else
echo 'Message successfully delivered' . PHP_EOL;
}
// Close the connection to the server
fclose($fp);
Now the connection is still live and runs until the foreach is complete.
Tested and working.