دورة الطلب وحاوية الخدمات

<?php
declare(strict_types=1);
require __DIR__ . '/vendor/autoload.php';
interface PricePolicy { public function apply(int $cents): int; }
final class FixedPolicy implements PricePolicy { public function apply(int $cents): int { return $cents - 100; } }
final class QuoteService {
    public function __construct(private PricePolicy $policy) {}
    public function quote(int $cents): int { return $this->policy->apply($cents); }
}
$container = new Illuminate\Container\Container();
$container->bind(PricePolicy::class, FixedPolicy::class);
echo $container->make(QuoteService::class)->quote(500), PHP_EOL;

400

يثبت البناء والسياسة محلياً لا مزودات أو نظام تسعير فعلياً.

<?php
declare(strict_types=1);
require __DIR__ . '/vendor/autoload.php';
final class Marker {}
$container = new Illuminate\Container\Container();
$container->bind('fresh', fn() => new Marker());
$container->singleton('shared', fn() => new Marker());
echo $container->make('fresh') === $container->make('fresh') ? "same\n" : "different\n";
echo $container->make('shared') === $container->make('shared') ? "same\n" : "different\n";

different
same

تخص المقارنة هذه الحاوية؛ ويحتاج نطاق الطلب وإعادة العامل دليلاً منفصلاً.