<?php
use OpenTelemetry\API\Trace\Span;
use OpenTelemetry\SDK\Trace\TracerProvider;
use OpenTelemetry\SDK\Trace\SimpleSpanProcessor;
use OpenTelemetry\Contrib\Prometheus\PrometheusExporter;
// Initialize the tracer
$tracerProvider = TracerProvider::create()
->addSpanProcessor(new SimpleSpanProcessor(new PrometheusExporter()));
$tracer = $tracerProvider->getTracer('example-tracer');
// Start a new span
$span = $tracer->startSpan('example-span');
// Your application logic here
// End the span
$span->end();
// Use alerts based on metrics collected
// Implement logic to evaluate spans and trigger alerts as necessary
?>
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