Add robust event tracking and analytics to PHP applications using the Snowplow analytics platform with multiple emitter strategies and comprehensive event types.
Implement robust event tracking in PHP applications using the Snowplow analytics platform. This skill helps you set up and use the Snowplow PHP Tracker library with proper architecture patterns, multiple emitter strategies, and comprehensive event tracking capabilities.
Set up the basic tracker with proper architecture:
```php
// Initialize components
$subject = new Subject();
$subject->setUserId("user123");
$subject->setPlatform("web");
$emitter = new CurlEmitter($collector_uri, "https", "POST", 50);
$tracker = new Tracker($emitter, $subject);
```
```php
// Track page views with proper timestamp
$tracker->trackPageView($page_url, $page_title, null, time() * 1000);
```
```php
// Track structured events with category and action
$tracker->trackStructEvent($category, $action, $label, $property, $value);
```
```php
// Track purchase events
$tracker->trackEcommerceTransaction($order_id, $total_value, $affiliation, $tax_value, $shipping, $city, $state, $country, $currency);
```
Choose the appropriate emitter based on your use case:
```php
// High-volume async tracking
$emitter = new CurlEmitter($uri, "https", "POST", 50);
// Simple synchronous tracking
$emitter = new SyncEmitter($uri);
```
Structure event data properly:
```php
$payload = new Payload($timestamp);
$payload->add("e", "pv"); // Event type
$payload->add("url", $url); // Page URL
$payload->addJson($context_data, true, "ue_px", "ue_pr");
```
Set up user context and session information:
```php
$subject = new Subject();
$subject->setUserId($user_id);
$subject->setViewportDimensions($width, $height);
$subject->setColorDepth($color_depth);
$subject->setTimezone($timezone);
```
Handle event buffering and flushing:
```php
// Configure buffer size for batching
$emitter = new CurlEmitter($uri, "https", "POST", 50);
// Force flush when needed (e.g., end of request)
$tracker->flushEmitters();
```
Set up tracking for testing environments:
```php
// Mock collector for testing
$emitter = new SyncEmitter("localhost", "http", "POST", 1, true);
$tracker = new Tracker($emitter, new Subject());
// Test event tracking
$tracker->trackPageView("/test-page", "Test Page");
```
Implement proper error handling for tracking failures:
```php
try {
$tracker->trackPageView($url, $title);
} catch (Exception $e) {
// Log tracking errors without breaking application flow
error_log("Snowplow tracking error: " . $e->getMessage());
}
```
This skill provides a comprehensive foundation for implementing Snowplow analytics tracking in PHP applications with proper architecture, error handling, and performance optimization.
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