GCM - 一個註冊ID正在工作，但因多個註冊ID失敗

Question

我想將GCM消息發送到多個註冊設備。當僅發送給一個（作爲測試）時，它可以工作，但是當添加其餘的ID時，我會收到無效的註冊錯誤並且不會發送任何內容。

我做到以下幾點：

$sql = "select group_concat(gcm_id) from users where gcm_id is not null"; 

如果只有1 ID（regid1），它的工作原理，如果有一個以上（regid1，regid2），它失敗invalidregistration。我試過如下：

$sql = "select group_concat(concat('\"',gcm_id,'\"')) from users where gcm_id is not null"; 

失敗兩個1號（ 「regid1」）和幾個ID（ 「gcmid1」， 「gcmid2」）。

regid的格式應該如何工作？

$sql = "select group_concat(gcm_id) from users where gcm_id is not null"; 
    if ($stmt = $con->prepare($sql)) { 
     if ($stmt->execute()) {        
      $stmt->bind_result($gcm_ids); 
      $stmt->fetch();   
      $ids = array($gcm_ids); 
      $stmt->close();       
     } else trigger_error("Problem retrieving gcm ids"); 
    } else trigger_error("Problem retrieving gcm ids"); 
    $con->close();  

if (empty($gcm_ids)) trigger_error("no registrations"); 
    else sendGoogleCloudMessage( $data, $ids); 

    function sendGoogleCloudMessage($data, $gids) { 
     $apiKey = '...'; 
     $url = 'https://android.googleapis.com/gcm/send'; 

     $post = array('registration_ids' => $gids,'data' => $data); 

     $headers = array('Authorization: key='.$apiKey,'Content-Type: application/json'); 

     $ch = curl_init(); 
     // Set URL to GCM endpoint 
     curl_setopt($ch, CURLOPT_URL, $url); 
     // Set request method to POST 
     curl_setopt($ch, CURLOPT_POST, true); 
     // Set our custom headers 
     curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); 
     // Get the response back as string instead of printing it 
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); 
     // Set post data as JSON 
     curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($post)); 
     // Actually send the push! 
     $result = curl_exec($ch); 
     if (curl_errno($ch)) trigger_error('Error: '.curl_error($ch)); 
     else echo "sent: ".$result; 
     curl_close($ch);     
    } 

Answer 1

嘗試使用爆炸

$ids = explode(",",$gcm_ids); 

的registration_ids應提交爲陣列。

{ "collapse_key": "score_update", 
    "time_to_live": 108, 
    "delay_while_idle": true, 
    "data": { 
    "score": "4x8", 
    "time": "15:16.2342" 
    }, 
    "registration_ids":["4", "8", "15", "16", "23", "42"] 
} 

更多信息可以在這裏找到https://developer.android.com/google/gcm/http.html