Optimizely SDK for Full Stack PHP projects.


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This repository houses the PHP SDK for use with Optimizely Full Stack and Optimizely Rollouts.

Optimizely Full Stack is A/B testing and feature flag management for product development teams. Experiment in any application. Make every feature on your roadmap an opportunity to learn. Learn more at https://www.optimizely.com/platform/full-stack/, or see the documentation.

Optimizely Rollouts is free feature flags for development teams. Easily roll out and roll back features in any application without code deploys. Mitigate risk for every feature on your roadmap. Learn more at https://www.optimizely.com/rollouts/, or see the documentation.

Getting Started

Installing the SDK

The Optimizely PHP SDK can be installed through Composer. Please use the following command:

php composer.phar require optimizely/optimizely-sdk

Feature Management Access

To access the Feature Management configuration in the Optimizely dashboard, please contact your Optimizely account executive.

Using the SDK


Create the Optimizely client, for example:

$optimizely = new Optimizely(<<DATAFILE>>);

Or you may also use OptimizelyFactory method to create an optimizely client using your SDK key, an optional fallback datafile and an optional datafile access token. Using this method internally creates an HTTPProjectConfigManager. See HTTPProjectConfigManager for further detail.

$optimizelyClient = OptimizelyFactory::createDefaultInstance("your-sdk-key", <<DATAFILE>>, <<DATAFILE_AUTH_TOKEN>>);

To access your HTTPProjectConfigManager:

$configManager = $optimizelyClient->configManager;

Or you can also provide an implementation of the ProjectConfigManagerInterface in the constructor:

$configManager = new HTTPProjectConfigManager(<<SDK_KEY>>);
$optimizely = new Optimizely(<<DATAFILE>>, null, null, null, false, null, $configManager);


ProjectConfigManagerInterface exposes getConfig method for retrieving ProjectConfig instance.


HTTPProjectConfigManager is an implementation of ProjectConfigManagerInterface interface.

The fetch method makes a blocking HTTP GET request to the configured URL to download the project datafile and initialize an instance of the ProjectConfig.

Calling fetch will update the internal ProjectConfig instance that will be returned by getConfig.

Use HTTPProjectConfigManager
$configManager = new HTTPProjectConfigManager(<<SDK_KEY>>);
SDK key

Optimizely project SDK key; required unless source URL is overridden.

A notification will be triggered whenever a new datafile is fetched and ProjectConfig is updated. To subscribe to these notifications, use the $notificationCenter->addNotificationListener(NotificationType::OPTIMIZELY_CONFIG_UPDATE, $updateCallback).


See the Optimizely Full Stack developer documentation to learn how to set up your first Full Stack project and use the SDK.


Unit tests

Running all tests

You can run all unit tests with: