some questions for iOS batch push notification - php

Question

I need to send the same push notification to thousands of devices. I can get the tokens from DB.
Here is the example of PHP web service code.
public function send($tokens) {
if (is_array($tokens) && count($tokens) > 0) {
$body = array('aps' => array('alert' => $content, 'badge' => 0, 'sound' => 'received5.caf'));
$ctx = stream_context_create();
stream_context_set_option($ctx, 'ssl', 'local_cert', 'ck5.pem');
$fp = stream_socket_client('ssl://gateway.push.apple.com:2195', $err, $errstr, 60, STREAM_CLIENT_CONNECT, $ctx);
if (!$fp) {
print "Failed to connect $token $err $errstrn";
return;
}
print "Connection OK/n";
$payload = json_encode($body);
foreach($tokens as $token) {
$msg = chr(0) . pack("n",32) . pack('H*', str_replace(' ', '', $token)) . pack("n",strlen($payload)) . $payload;
print "sending message :" . $payload . "/n";
fwrite($fp, $msg);
}
fclose($fp);
}
}
So, first I get the connection to APNs calling:
$fp = stream_socket_client('ssl://gateway.push.apple.com:2195', $err, $errstr, 60, STREAM_CLIENT_CONNECT, $ctx);
Then I package the message in a foreach loop, send the notifications.
And finally, close the notifications.
fclose($fp);
But it just doesn't work, where am I doing wrong?

Answer 1

Give this a go... Ive added an extra chr(0), as per the API docs. The first chr(0) is the command. The next 2 bytes is the length of the token 0x0020.
$msg = chr(0) . chr(0) . pack("n",32) . pack('H*', str_replace(' ', '', $token)) . pack("n",strlen($payload)) . $payload;