android - GoogleCloudMessaging PHP script always returning invalidregistration -

i know there lots of posts same issue, after read of them not find reason of problem.

i wrote gcm client register device receive messages server. working , can store registration id in database.

my problem in server side. i'm using script found somewhere googling, receive error result:

{"multicast_id":7341760174206782539,"success":0,"failure":1,"canonical_ids":0,"results":[{"error":"invalidregistration"}]} 

the php code (i'm using browser api instead of server api told on tutorial, trying both keys returns same message):

<?php // replace real browser api key google apis $apikey = "aizasyacln4edhszw30xcmypqomz_gcrcc1ifjy";  // replace real client registration ids  $registrationids = array( "apa91bedf1w4dqtsuqpt1jhhwepvrpxzb1yrpl3rvtkrvxfzxfg2-yl-pwhorsnmsnkqywq8g90ycgeboqcjgqu8cnja0n7mowf8bhmhhas4ty46pptx8yh6esasqvu3jtmmb-p0ma90ebg0rsqqbuh3ax895kxiti3lcigoyqrfe5pzq");  // message sent $message = "this test";  // set post variables $url = 'https://android.googleapis.com/gcm/send';  $fields = array(                 'registration_ids'  => $registrationids,                 'data'              => array( "message" => $message ),                 );  $headers = array(                      'authorization: key=' . $apikey,                     'content-type: application/json'                 );  // open connection $ch = curl_init();  // set url, number of post vars, post data curl_setopt( $ch, curlopt_url, $url );  curl_setopt( $ch, curlopt_post, true ); curl_setopt( $ch, curlopt_httpheader, $headers); curl_setopt( $ch, curlopt_returntransfer, true );  curl_setopt( $ch, curlopt_postfields, json_encode( $fields ) );  // execute post $result = curl_exec($ch);  // close connection curl_close($ch);  echo $result; ?> 

i put real ids , key see if i'm doing right. ideas?

i had same problem couple of minutes ago.

change

$fields = array(             'registration_ids'  => $registrationids,             'data'              => array( "message" => $message ),             ); 

to this:

$fields = array(              'registration_ids'  => array($registrationids),              'data'              => array( "message" => $message ),              );