Online PHP editor | perf for XNRiS

@ 2024-10-23T15:48:45Z

<?php

final readonly class Post
{
    public int $id;
    public string $name;
    public string $email;

    public function greet(): string
    {
        return "Hello 👋";
    }
}

final readonly class PostRepository
{
    private ReflectionClass $reflector;

    public function __construct(
    ) {
        $this->reflector = new ReflectionClass(Post::class);
    }

    public function find(int $id): Post
    {
        var_dump("Loading post with ID $id");

        $entity = $this->reflector->newLazyGhost(function ($entity) use ($id) {
            var_dump("Lazy initialization triggered for ID $id");

            $data = $this->loadFromDatabase($id);
            $this->reflector->getProperty('name')->setValue($entity, $data['name']);
            $this->reflector->getProperty('email')->setValue($entity, $data['email']);
        });

        // ID is already known and can be accessed without triggering initialization
        $this->reflector->getProperty('id')->setRawValueWithoutLazyInitialization($entity, $id);

        return $entity;
    }

    private function loadFromDatabase(int $id): array
    {
        // Simulate loading from database
        return [
            'name' => 'John Doe',
            'email' => 'john.doe@example.com',
        ];
    }
}

$em = new PostRepository();
$post = $em->find(42);
var_dump($post);
var_dump($post->greet());
// This will really trigger the lazy initialization
$post->email;
var_dump($post);

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

Version	System time (s)	User time (s)	Memory (MiB)
8.5.0	0.012	0.010	19.99
8.4.15	0.003	0.000	14.05
8.4.14	0.013	0.010	17.77
8.4.13	0.010	0.012	19.02
8.4.12	0.013	0.007	23.89
8.4.11	0.012	0.007	22.57
8.4.10	0.006	0.004	17.60
8.4.9	0.010	0.005	18.88
8.4.8	0.008	0.011	17.81
8.4.7	0.010	0.009	17.76
8.4.6	0.012	0.008	18.61
8.4.5	0.009	0.007	18.65
8.4.4	0.020	0.000	17.53
8.4.3	0.016	0.003	20.32
8.4.2	0.010	0.010	19.20
8.4.1	0.009	0.000	19.50
8.3.28	0.014	0.007	18.43
8.3.27	0.011	0.009	16.95
8.3.26	0.010	0.005	16.79
8.3.25	0.007	0.002	18.82
8.3.24	0.010	0.010	17.02
8.3.23	0.014	0.007	16.60
8.3.22	0.003	0.004	17.10
8.3.21	0.006	0.003	16.82
8.3.20	0.006	0.003	16.63
8.3.19	0.013	0.006	16.76
8.3.18	0.006	0.004	16.70
8.3.17	0.006	0.013	17.11
8.3.16	0.012	0.006	19.16
8.3.15	0.011	0.004	17.09
8.3.14	0.009	0.000	16.86
8.3.13	0.025	0.011	17.14
8.3.12	0.000	0.008	18.65
8.3.11	0.004	0.004	16.85
8.3.5	0.004	0.004	16.70
8.2.29	0.009	0.009	20.49
8.2.28	0.010	0.009	16.53
8.2.27	0.000	0.016	16.52
8.2.26	0.012	0.004	17.18
8.2.25	0.008	0.008	16.89
8.2.24	0.007	0.003	18.60
8.2.23	0.009	0.000	16.60
8.1.33	0.008	0.010	23.48
8.1.32	0.013	0.006	16.22
8.1.31	0.006	0.009	16.84
8.1.30	0.009	0.000	16.13

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