DianaSchef

<?php
// This code is what the Symfony Dependency Injection container performs
// under the hood when registering a listener.
$eventDispatcher->addListener(
    KernelEvents::REQUEST,
    function ($event) {
        // only when here, MyListener and ExpensiveDependency trigger autoloading
        // and the time of calling their constructor is spent.
        (new MyListener(new ExpensiveDependency))->onKernelRequest($event);
    },

DianaSchef

<?php

require_once 'vendor/autoload.php';

$functions = spl_autoload_functions();
foreach ($functions as $function) {
    if ($function instanceof \Closure) {
        $reflection = new ReflectionFunction($function);
        // check if autoloader closure is from laminas zendframework bridge
        if (str_contains($reflection->getFileName(), 'laminas-zendframework-bridge')) {