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Ably

Ably is the platform that powers synchronized digital experiences in realtime. Whether attending an event in a virtual venue, receiving realtime financial information, or monitoring live car performance data – consumers simply expect realtime digital experiences as standard. Ably provides a suite of APIs to build, extend, and deliver powerful digital experiences in realtime for more than 250 million devices across 80 countries each month. Organizations like Bloomberg, HubSpot, Verizon, and Hopin depend on Ably’s platform to offload the growing complexity of business-critical realtime data synchronization at global scale. For more information, see the Ably documentation.

This is a PHP REST client library for Ably. The library currently targets the Ably 1.1 client library specification. You can jump to the 'view our client library SDKs feature support matrix to see the list of all the available features.

Supported Platforms

This SDK supports PHP >=7.2

We regression-test the library against a selection of PHP versions (which will change over time, but usually consists of the versions that are supported upstream). Please refer to the check workflow for the set of versions that currently undergo CI testing.

We'll happily support (and investigate reported problems with) any reasonably-widely-used PHP version. If you find any compatibility issues, please do raise an issue in this repository or contact Ably customer support for advice.

Known Limitations

Currently, this SDK only supports Ably REST. However, you can use the MQTT adapter to implement Ably's Realtime features using Mosquitto PHP.

Documentation

Visit https://www.ably.com/docs for a complete API reference and more examples.

Installation

Via composer

The client library is available as a composer package on packagist. If you don't have composer already installed, you can get it from https://getcomposer.org/.

Install Ably from the shell with:

$ composer require ably/ably-php --update-no-dev

Then simply require composer's autoloader:

Manual installation

Clone or download Ably from this repo and require ably-loader.php:

Using the REST API

Introduction

All examples assume a client and/or channel has been created as follows:

Publishing a message to a channel

Querying the History

Presence on a channel

Querying the Presence History

Getting the channel status

Generate Token and Token Request

Fetching your application's stats

Fetching the Ably service time

Laravel realtime broadcasting

If you're using Laravel and want to support realtime broadcasting and events, you may want to check out laravel-broadcaster.

If you want ably-php as a rest dependency across service providers, check ably-php-laravel. ably-php-laravel is a simple wrapper over ably-php with laravel-specific classes. This has limited use-cases and laravel-broadcaster is recommended over ably-php-laravel for most use-cases.

Making explicit HTTP requests to Ably Rest Endpoints / Batch publish

• The AblyRest->Request method can be used to make explicit HTTP requests to the Ably REST API.
• It automatically adds necessary auth headers based on the initial auth config and supports pagination.

• The following is an example of using the batch publish API based on the Ably batch publish rest endpoint documentation.

• See the ably rest endpoint doc for more information on other endpoints.
• Ably uses msgpack as a default encoding for messages. Read encode using msgpack for better efficiency.
• If you want to send payload as json, please set useBinaryProtocol as false in clientOptions.

Support, feedback and troubleshooting

Please visit http://support.ably.com/ for access to our knowledgebase and to ask for any assistance.

You can also view the community reported Github issues.

To see what has changed in recent versions of Bundler, see the CHANGELOG.

Known limitations

1. This client library requires PHP version 5.4 or greater

Running the tests

The client library uses the Ably sandbox environment to provision an app and run the tests against that app. In order to run the tests, you need to:

git clone https://github.com/ably/ably-php.git
cd ably-php
composer install
git submodule init
git submodule update
./vendor/bin/phpunit

Note - If there is a issue while running tests [SSL certificate error: unable to get local issuer certificate], please set SSL cert path in php.ini. For more information, follow https://aboutssl.org/fix-ssl-certificate-problem-unable-to-get-local-issuer-certificate/

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Ensure you have added suitable tests and the test suite is passing (run vendor/bin/phpunit)
5. Push to the branch (git push origin my-new-feature)
6. Create a new Pull Request

Release Process

This library uses semantic versioning. For each release, the following needs to be done:

1. Update the version number in src/Defaults.php
2. Create a new branch for the release, named like release/1.0.0 (where 1.0.0 is what you're releasing, being the new version).
3. Run github_changelog_generator to automate the update of the CHANGELOG.md. This may require some manual intervention, both in terms of how the command is run and how the change log file is modified. Your mileage may vary:
   • The command you will need to run will look something like this: github_changelog_generator -u ably -p ably-php --since-tag 1.1.9 --output delta.md --token $GITHUB_TOKEN_WITH_REPO_ACCESS. Generate token here.
   • Using the command above, --output delta.md writes changes made after --since-tag to a new file.
   • The contents of that new file (delta.md) then need to be manually inserted at the top of the CHANGELOG.md, changing the "Unreleased" heading and linking with the current version numbers.
   • Also ensure that the "Full Changelog" link points to the new version tag instead of the HEAD.
4. Commit generated CHANGELOG.md file.
5. Make a PR against main.
6. Once the PR is approved, merge it into main.
7. Add a tag and push to origin such as git tag 1.0.0 && git push origin 1.0.0.
8. Visit https://github.com/ably/ably-php/tags and add release notes for the release including links to the changelog entry.
9. Visit https://packagist.org/packages/ably/ably-php, log in to Packagist, and click the "Update" button.
10. Remember to make a release update for laravel-broadcaster and ably-php-laravel.