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Notifications are beeing send in such cases, depending on your used Notifier.The default implementation of SystemEventStorage stores your data in a mix of APC and Memcached. Therefore it requires both php extensions.Usage=====init all the things. All classes prefixed with `My` need to be provided by the application/framework beeing monitored.```php// sends notificaitons on urgent events$notifier = new SeverityNotifier(new MyCustomNotifier(), SystemEvent::SEVERITY_URGENT);// main class which collects all the data$monitor = new SystemMonitor(new SystemEventStorage(), new MyRequestEnvImpl(), $notifier);```report performance-data from somewhere in your app (e.g. on request shutdown)```phpregister_shutdown_function(function() { $requestStats = new RequestStatsEvent(); // data from your db class $requestStats->usedQueries = DB::$num_of_queries; $requestStats->usedConnections = DB::$num_of_connections; // data from your runtime $requestStats->peakMemory = number_format(memory_get_peak_usage(true) / 1024 / 1024); // retrieve the monitor instance, e.g. via a DIC/a registry/singleton/whatever // $monitor = .. $monitor->collectStats($requestStats);});```let the monitor collect data about exceptions occured```phpset_exception_handler(function() { $event = new RequestExceptionEvent(); $event->exception = $exception; // retrieve the monitor instance, e.g. via a DIC/a registry/singleton/whatever // $monitor = .. $monitor->collectException($event);});```you could do the same for errors. To collect data of fatal errors there are some known workarounds which can be used (checking for error_get_last() in a shutdown function)



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