gistfile1.php

<?php

// this check prevents access to debug front controllers that are deployed by accident to production servers.
// feel free to remove this, extend it, or make something more sophisticated.
if (!in_array(@$_SERVER['REMOTE_ADDR'], array(
    '127.0.0.1',
    '::1',
    '84.14.82.2',
    '88.175.92.100',
))) {
    header('HTTP/1.0 403 Forbidden');
    die('You are not allowed to access this file. Check '.basename(__FILE__).' for more information.');
}

//require_once __DIR__.'/../app/autoload.php';
require_once __DIR__.'/../app/bootstrap.php.cache';
require_once __DIR__.'/../app/AppKernel.php';

use Symfony\Component\HttpFoundation\Request;
use Ekino\Metric\Reporter\Xhprof\XhprofSample;

/**
 * Initialize a Kernel
 */
$kernel = new AppKernel('dev', true);
//$kernel = new AppCache($kernel);
$kernel->loadClassCache();

/**
 * Trace only 1/100 requests or if the xhprof parameter is defined into the query
 * You can of course add you own logic : IP check, etc ...
 *
 * The xhprof overhead can be very important, so use it with care.
 */
if (rand(1, 100) == 50 || isset($_GET['_xhprof'])) {

    // Very bad for production - use with care
//    $flag = XhprofSample::FLAGS_MEMORY + XhprofSample::FLAGS_CPU;

    // Almost good for production
    $flag = XhprofSample::FLAGS_MEMORY;

    $collector = new Ekino\Metric\Collector\XhprofCollector('php.', array('main' => 'main()'), $flag);

    // If the die/exit method is called, the xhprof trace will be stored
    register_shutdown_function(function() use ($collector, $kernel) {
        $collector->stop();

        $kernel->getContainer()->get('ekino.metric.manager')->addCollection($collector->get());
        $kernel->getContainer()->get('ekino.metric.manager')->flush();
    });

    $collector->start();
}

$request = Request::createFromGlobals();
$response = $kernel->handle($request);
$response->send();

$kernel->terminate($request, $response);