PHP Firebase Cloud Messaging

PHP SDK for Firebase Cloud Messaging from Google, supporting the HTTP V1 API.

See the official Firebase docs: https://firebase.google.com/docs/cloud-messaging

Requirements

• PHP >= 7.4
• A Firebase service account JSON file (how to generate one)

Setup

Install via Composer:

composer require redjanym/php-firebase-cloud-messaging

Or add this to your composer.json and run composer update:

"require": {
    "redjanym/php-firebase-cloud-messaging": "2.*"
}

Usage

Send a Message to a Device

use RedjanYm\FCM\Client;
use RedjanYm\FCM\Notification;
use RedjanYm\FCM\Recipient\Device;

$serviceAccountPath = '/path/to/service-account.json';

$client = new Client($serviceAccountPath);
$recipient = new Device('your-device-token');
$notification = new Notification($recipient, 'Title', 'Body', ['key' => 'value']);

$response = $client->send($notification);

Send a Message to a Topic

use RedjanYm\FCM\Client;
use RedjanYm\FCM\Notification;
use RedjanYm\FCM\Recipient\Topic;

$serviceAccountPath = '/path/to/service-account.json';

$client = new Client($serviceAccountPath);
$recipient = new Topic('news');
$notification = new Notification($recipient, 'Title', 'Body', ['key' => 'value']);

$response = $client->send($notification);

Clients subscribe to topics from the client app. See the Firebase topic documentation for details on managing topic subscriptions.

Customizing Notifications

The Notification object exposes public properties for platform-specific configuration:

$notification = new Notification($recipient, 'Title', 'Body');

// Android
$notification->androidPriority = 'high';
$notification->androidChannelId = 'my_channel';
$notification->icon = 'ic_notification';
$notification->color = '#FF0000';

// APNs (iOS)
$notification->apnsPriority = '10';
$notification->badge = 5;
$notification->sound = 'default';
$notification->contentAvailable = true;

// General
$notification->image = 'https://example.com/image.png';
$notification->ttl = '3600s';
$notification->clickAction = 'OPEN_ACTIVITY';
$notification->analyticsLabel = 'campaign_123';

// Additional platform-specific settings via extra arrays
$notification->extraNotificationSettings = ['tag' => 'my-tag'];
$notification->extraAPNSHeadersSettings = ['apns-collapse-id' => 'campaign'];
$notification->webPushHeadersSettings = ['Urgency' => 'high'];

Testing

Install dev dependencies and run the test suite with PHPUnit:

composer install
vendor/bin/phpunit

To run a specific test file:

vendor/bin/phpunit tests/NotificationTest.php

To run a specific test method:

vendor/bin/phpunit --filter testJsonSerializeWithTopic

Migrating from V1

V2 of this package introduces breaking changes due to the migration from the legacy FCM API to the HTTP V1 API. The new structure is still simple and very similar to the previous one.

Interpreting Responses

The send() method returns a PSR-7 ResponseInterface. Responses follow the standard FCM specifications:

• Downstream message responses
• Error codes