$config = $optimizelyClient->getOptimizelyConfig();

/** * OptimizelyConfig is an object describing the current project configuration data being used by this SDK instance. * @typedef {string} environmentKey * @typedef {string} sdkKey * @typedef {string} revision * This experimentsMap is for experiments of legacy projects only. * For flag projects, experiment keys are not guaranteed to be unique * across multiple flags, so this map may not include all experiments * when keys conflict. * @property {Object.<string, OptimizelyExperiment>}} experimentsMap * @property {Object.<string, OptimizelyFeature>}} featuresMap * @property [Object.<string, OptimizelyAttribute>}] attributes * @property [Object.<string, OptimizelyAudience>}] audiences * @property [Object.<string, OptimizelyEvent>}] events                *//** * OptimizelyFeature is an object describing a feature flag * @typedef {Object} OptimizelyFeature * @property {string} id * @property {string} key * @property [Object.<string, OptimizelyExperiment>}] experimentRules * @property [Object.<string, OptimizelyExperiment>}] deliveryRules * Use experimentRules and deliverRules * @property {Object.<string, OptimizelyExperiment>}} experimentsMap * @property {Object.<string, OptimizelyVariable>}} variablesMap *//** * OptimizelyExperiment is an object describing an experiment * @typedef {Object} OptimizelyExperiment * @property {string} id * @property {string} key * @property {string} audiences * @property {Object.<string, OptimizelyVariation>}} variationMap *//** * OptimizelyVariation is an object describing a variation in an experiment * @typedef {Object} OptimizelyVariation * @property {string} id * @property {string} key * @property {boolean=} featureEnabled * @property {Object.<string, OptimizelyVariable>}} variablesMap *//** * OptimizelyVariable is an object describing a feature flag variable * @typedef {Object} OptimizelyVariable * @property {string} id * @property {string} key * @property {string} type * @property {string} value *//** * OptimizelyAttribute is an object describing an attribute * @typedef {Object} OptimizelyAttribute * @property {string} id * @property {string} key *//** * OptimizelyAudience is an object describing an audience * @typedef {Object} OptimizelyAudience * @property {string} id * @property {string} name * @property {string} conditions  *//** * OptimizelyEvent is an object describing an event * @typedef {Object} OptimizelyEvent * @property {string} id * @property {string} key * @property {array} experimentIds  */

$config = $optimizelyClient->getOptimizelyConfig();// get the revisionecho "[OptimizelyConfig] revision:" . $config->getRevision();// get the SDK keyecho "[OptimizelyConfig] SDKKey:" . $config->getSdkKey();// get the environment keyecho "[OptimizelyConfig] environmentKey:" . $config->getEnvironmentKey();// all attributesecho "[OptimizelyConfig] attributes:";$attributes = $config->getAttributes();foreach($attributes as $attribute){    echo "[OptimizelyAttribute]   -- (id, key) = ((" . $attribute->getId(). "), (". $attribute->getKey() . "))";}// all audiencesecho "[OptimizelyConfig] audiences:";$audiences = $config->getAudiences();foreach($audiences as $audience){    echo "[OptimizelyAudience]   -- (id, key, conditions) = ((" . $audience->getId(). "), (". $audience->getName() . "), (". $audience->getConditions() . "))";}// all eventsecho "[OptimizelyConfig] events:";$events = $config->getEvents();foreach($events as $event){    echo "[OptimizelyEvent]   -- (id, key, experimentIds) = ((" . $event->getId(). "), (". $event->getKey() . "), (". $event->getExperimentIds() . "))";}// all flags$flags = array_values((array)$config->getFeaturesMap());foreach ($flags as $flag){    // Use  experimentRules and deliverRules    $experimentRules = $flag->getExperimentRules();    foreach ($experimentRules as $experimentRule)    {    echo "[OptimizelyExperiment]   - experiment rule-key = " . $experimentRule->getKey();    echo "[OptimizelyExperiment]   - experiment audiences = " . $experimentRule->getExperimentAudiences();        // all variations        $variations = array_values((array)$experimentRule->getVariationsMap());        foreach ($variations as $variation)        {            echo "[OptimizelyVariation]       -- variation = { key: " . $variation->getKey() . ", id: " . $variation->getId() . ", featureEnabled: " . $variation->getFeatureEnabled() . " }";            $variables = $variation->getVariablesMap();            foreach ($variables as $variable)            {                echo "[OptimizelyVariable]           --- variable: " . $variable->getKey() . ", " . $variable->getId();            // use variable data here.            }            // use experimentRule data here.        }    }    $deliveryRules = $flag->getDeliveryRules();    foreach ($deliveryRules as $deliveryRule)    {        echo "[OptimizelyExperiment]   - delivery rule-key = " . $deliveryRule->getKey();        echo "[OptimizelyExperiment]   - delivery audiences = " . $deliveryRule->getExperimentAudiences();        // use delivery rule data here...    }}$optimizelyClient->notificationCenter->addNotificationListener(    NotificationType::OPTIMIZELY_CONFIG_UPDATE,    function () {        $newConfig = $optimizelyClient->getOptimizelyConfig();        echo "[OptimizelyConfig] revision = " . $newConfig ? $newConfig->getRevision() : "";    });