Maximum number of push notification sent to Android device in PHP using GCM

Question

I want to send multiple push notification to android devices at same time from PHP server to Android devices .

Currently we have to make array of Registered device id's then send array and message to https://android.googleapis.com/gcm/send (GCM)

$registrationIds = array("deviceid1","deviceid2" );

So i want to to know if i have large registered android devices than what is Maximum number of push notification sent in PHP using GCM

Currently i do not find any official source mentioning number of push notification send at a time.

any help is appreciated.

Answer 1

After Google moved from CD2M to GCM, they removed any limit in the number of recipients and also in the number of the messages sent per day.

There is, however, a limit in the length of the message (4K).

More on this latter, take a look here .

Answer 2

Or you can consider to use GCM topic messaging if you don't need to keep track of registered devices