<?php

use Symfony\Component\HttpKernel\DataCollector\MemoryDataCollector;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;

$dataCollector = new MemoryDataCollector();

$request = Request::createFromGlobals();
$response = (new Response('blabla'))->prepare($request);
$dataCollector->collect($request, $response);

echo $dataCollector->getMemory() . PHP_EOL;

$array = range(0, 10000);

$dataCollector->updateMemoryUsage();
echo $dataCollector->getMemory() . PHP_EOL;

16777216
18874368

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PHP 8.2, Laminas MVC 3.2, Symfony 5.2, Laravel 8.28, PHPUnit 9.5, Doctrine ORM 2.8