如果您正在使用PHP，我建议使用用于Firebase的PHP SDK: Firebase Admin SDK。为了一个简单的配置，您可以按照以下步骤:

从Firebase获取项目凭证json文件(初始化sdk)，并将其包含在项目中。

在项目中安装SDK。我使用composer:

composer require kreait/firebase-php ^4.35

试试SDK文档中云消息会话的任何例子:

use Kreait\Firebase;
use Kreait\Firebase\Messaging\CloudMessage;

$messaging = (new Firebase\Factory())
->withServiceAccount('/path/to/firebase_credentials.json')
->createMessaging();

$message = CloudMessage::withTarget(/* see sections below */)
    ->withNotification(Notification::create('Title', 'Body'))
    ->withData(['key' => 'value']);

$messaging->send($message);

可以使用FCM HTTP v1 API端点将通知或数据消息发送到firebase基础云消息服务器。 https://fcm.googleapis.com/v1/projects/zoftino-stores/messages:发送。

您需要使用Firebase控制台生成并下载服务账号的私钥，使用谷歌api客户端库生成接入密钥。使用任何http库张贴消息到上面的端点，下面的代码显示张贴消息使用OkHTTP。您可以在firebase云消息传递中找到完整的服务器端和客户端代码，并使用fcm主题示例向多个客户端发送消息

如果需要发送特定的客户端消息，则需要获取客户端的firebase注册密钥，参见向FCM服务器发送客户端或设备特定消息的示例

String SCOPE = "https://www.googleapis.com/auth/firebase.messaging";
String FCM_ENDPOINT
     = "https://fcm.googleapis.com/v1/projects/zoftino-stores/messages:send";

GoogleCredential googleCredential = GoogleCredential
    .fromStream(new FileInputStream("firebase-private-key.json"))
    .createScoped(Arrays.asList(SCOPE));
googleCredential.refreshToken();
String token = googleCredential.getAccessToken();



final MediaType mediaType = MediaType.parse("application/json");

OkHttpClient httpClient = new OkHttpClient();

Request request = new Request.Builder()
    .url(FCM_ENDPOINT)
    .addHeader("Content-Type", "application/json; UTF-8")
    .addHeader("Authorization", "Bearer " + token)
    .post(RequestBody.create(mediaType, jsonMessage))
    .build();


Response response = httpClient.newCall(request).execute();
if (response.isSuccessful()) {
    log.info("Message sent to FCM server");
}

使用服务api。

URL: https://fcm.googleapis.com/fcm/send

方法类型:POST

标题:

Content-Type: application/json
Authorization: key=your api key

车身/有效载荷：

{
   "notification": {
      "title": "Your Title",
      "text": "Your Text",
      "click_action": "OPEN_ACTIVITY_1"
   },
   "data": {
      "<some_key>": "<some_value>"
   },
   "to": "<device_token>"
}

在你的应用程序中，你可以添加以下代码在你的活动中被调用:

<intent-filter>
    <action android:name="OPEN_ACTIVITY_1" />
    <category android:name="android.intent.category.DEFAULT" />
</intent-filter>

也检查答案在Firebase onmessagerreceived未调用时，应用程序在后台

或者你可以使用Firebase的云功能，对我来说，这是实现推送通知的更简单的方法。 重火力点/ functions-samples

使用curl的示例

向特定设备发送消息

要将消息发送到特定设备，请将该设置为特定应用实例的注册令牌

curl -H "Content-type: application/json" -H "Authorization:key=<Your Api key>"  -X POST -d '{ "data": { "score": "5x1","time": "15:10"},"to" : "<registration token>"}' https://fcm.googleapis.com/fcm/send

向主题发送消息

这里的主题是:/topics/foo-bar

curl -H "Content-type: application/json" -H "Authorization:key=<Your Api key>"  -X POST -d '{ "to": "/topics/foo-bar","data": { "message": "This is a Firebase Cloud Messaging Topic Message!"}}' https://fcm.googleapis.com/fcm/send

向设备组发送消息

向设备组发送消息与向单个设备发送消息非常相似。将to参数设置为设备组的唯一通知键

curl -H "Content-type: application/json" -H "Authorization:key=<Your Api key>"  -X POST -d '{"to": "<aUniqueKey>","data": {"hello": "This is a Firebase Cloud Messaging Device Group Message!"}}' https://fcm.googleapis.com/fcm/send

使用服务API的示例

火网址:https://fcm.googleapis.com/fcm/send

头

Content-type: application/json
Authorization:key=<Your Api key>

请求方式:POST

请求体

发送到特定设备的消息

{
  "data": {
    "score": "5x1",
    "time": "15:10"
  },
  "to": "<registration token>"
}

主题的消息

{
  "to": "/topics/foo-bar",
  "data": {
    "message": "This is a Firebase Cloud Messaging Topic Message!"
  }
}

给设备组的消息

{
  "to": "<aUniqueKey>",
  "data": {
    "hello": "This is a Firebase Cloud Messaging Device Group Message!"
  }
}

Go to cloud Messaging select:  Server key



function sendGCM($message, $deviceToken) {

    $url = 'https://fcm.googleapis.com/fcm/send';
    $fields = array (
            'registration_ids' => array (
                $id
            ),
            'data' => array (
                "title" =>  "Notification title",
                "body" =>  $message,
            )
    );
    $fields = json_encode ( $fields );
    $headers = array (
        'Authorization: key=' . "YOUR_SERVER_KEY",
        'Content-Type: application/json'
    );
    $ch = curl_init ();
    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, $fields );
    $result = curl_exec ( $ch );
    echo $result;

    curl_close ($ch);
}