Build using Ably’s Pub/Sub PHP SDK, supported on all popular platforms and frameworks.
Ably Pub/Sub provides flexible APIs that deliver features such as pub-sub messaging, message history, presence, and push notifications. Utilizing Ably’s realtime messaging platform, applications benefit from its highly performant, reliable, and scalable infrastructure.
Find out more:
Everything you need to get started with Ably:
Ably aims to support a wide range of platforms. If you experience any compatibility issues, open an issue in the repository or contact Ably support.
Important
PHP SDK versions < 1.1.9 will be deprecated from November 1, 2025.
To get started with your project, install the package:
composer require ably/ably-php
The following code connects to Ably's REST messaging service, gets reference to a channel to receive messages, and publishes a test message to that same channel:
// Initialize Ably REST client
$ably = new AblyRest(['key' => 'your-ably-api-key', 'clientId' => 'me']);
// Get a reference to the 'test-channel' channel
$channel = $ably->channel('test-channel');
// Publish a test message to the channel
$channel->publish('test-event', 'hello world');
The CHANGELOG.md contains details of the latest releases for this SDK. You can also view all Ably releases on changelog.ably.com.
Read the CONTRIBUTING.md guidelines to contribute to Ably.
Support, feedback, and troubleshootingFor help or technical support, visit the Ably Support page.
This SDK currently supports only the Ably REST API. For realtime capabilities, you can use the MQTT adapter alongside Mosquitto PHP to implement Ably's Realtime features.
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