Update usage from older versions of the PHP SDK

1 min

This section provides code examples for how You should leveraging the new DecisionDecision and Event TrackingEvent Tracking APIs. All existing Full Stack (Legacy)Full Stack (Legacy) methods and implementation are still supported. See Optimizely Feature Experimentation - application & migrationOptimizely Feature Experimentation - application & migration documentation for the latest updates.

You should adopting the new Decide, Decide All, and Track Event methods as a more flexible and easier-to-use replacement where you currently use isFeatureEnabled, getFeatureVariable, getAllFeatures, or Track calls within your implementation.

The following are examples of how to migrate the Full Stack (Legacy) methods to Feature Experimentation methods:

// -------------------------------
// Prereq for new methods: create a user
// ------------------------------
$attributes = ['is_logged_in' => true];
$user = $optimizely->createUserContext('user_123', $attributes);

// -------------------------------
// Is Feature Enabled 
// ------------------------------
// old method
$enabled = $optimizely->isFeatureEnabled('flag_1', 'user_123', $attributes);

// new method
$decision = $user->decide('flag_1');
$enabled = $decision->getEnabled();

// -------------------------------
// Activate & Get Variation 
// ------------------------------
// old method
$variationKey = $optimizely->activate('experiment_1', 'user_123', $attributes);
// new method
$variationKey = $decision->getVariationKey();



// -------------------------------
// Get All Feature Variables 
// ------------------------------
// old method
$allVarValues = $optimizely->getAllFeatureVariables('flag_1',
                                                   'user_123',
                                                   $attributes); 
// new method
$allVarValues = $decision->getVariables();


// -------------------------------
// Get Enabled Features 
// ------------------------------
// old method
$enabledFlags = $optimizely->getEnabledFeatures('user_123');

// new method
$decisions = $user->decideAll(['ENABLED_FLAGS_ONLY']);
$enabledFlags = array_keys($decisions);


// -------------------------------
// Track 
// ------------------------------
// old method
$optimizely->track('my_purchase_event_key',
                   'user_123',
                   $attributes,
                   ['purchase_count' => 2]);

// new method
$user->trackEvent('my_purchase_event_key', ['purchase_count' => 2]);