PHP code example of opencensus / opencensus

1. Go to this page and download the library: Download opencensus/opencensus library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

opencensus / opencensus example snippets


    use OpenCensus\Trace\Tracer;
    use OpenCensus\Trace\Exporter\EchoExporter;

    Tracer::start(new EchoExporter());
    

$pi = Tracer::inSpan(['name' => 'expensive-operation'], function() {
    // some expensive operation
    return calculatePi(1000);
});

$pi = Tracer::inSpan(['name' => 'expensive-operation'], 'calculatePi', [1000]);


// Creates a detached span
$span = Tracer::startSpan(['name' => 'expensive-operation']);

// Opens a scope that attaches the span to the current context
$scope = Tracer::withSpan($span);
try {
    $pi = calculatePi(1000);
} finally {
    // Closes the scope (ends the span)
    $scope->close();
}