comparing json mapping libraries

bench.php

<?php

use EventSauce\ObjectHydrator\DefinitionDumper;
use EventSauce\ObjectHydrator\DefinitionProvider;
use EventSauce\ObjectHydrator\ObjectHydrator;
use EventSauce\ObjectHydrator\ObjectHydratorDumper;
use JsonMapper\Cache\ArrayCache;
use JsonMapper\Handler\PropertyMapper;

require 'vendor/autoload.php';

function bench($what = 'Bench', $echo = true)
{
    global $DEBUG_TIME;
    if ($DEBUG_TIME === null) {
        $DEBUG_TIME = hrtime(true);
    } else {
        $t = (hrtime(true) - $DEBUG_TIME) / 1e+9;
        $DEBUG_TIME = null;
        if ($echo) {
            echo "{$what} took {$t} s\n";
        } else {
            return $t;
        }
    }
    return null;
}

class Address
{
    public ?string $street;
    public ?string $city;

    /**
     * @param  string|null  $street
     * @param  string|null  $city
     */
    public function __construct(?string $street = null, ?string $city = null)
    {
        $this->street = $street;
        $this->city = $city;
    }


}

class Contact
{
    /**
     * Full name
     * @var string|null
     */
    public ?string $name;

    /**
     * @var Address|null
     */
    public ?Address $address;

    /**
     * @param  string|null  $name
     * @param  Address|null  $address
     */
    public function __construct(?string $name = null, ?Address $address = null)
    {
        $this->name = $name;
        $this->address = $address;
    }


}

$rawJson = '{"name":"Mario Rossi","address":{"street":"Via XX XX 1","city":"Milano"}}';
$json = json_decode($rawJson, false, 512, JSON_THROW_ON_ERROR);
$jsonArr = json_decode($rawJson, true, 512, JSON_THROW_ON_ERROR);
$runs = 100000;

$mapper1 = new JsonMapper();

bench('cweiske/jsonmapper json mapper');
for ($i = 0; $i < $runs; $i++) {
    $o = new Contact();
    $mapper1->map($json, $o);
}
bench('cweiske/jsonmapper json mapper');
// -------------------------------------------------------------------------------------------------------
$mapper2 = (new \JsonMapper\JsonMapperFactory())->bestFit();
bench('new json mapper "best fit"');
for ($i = 0; $i < $runs; $i++) {
    $o = new Contact();
    $mapper2->mapObject($json, $o);
}
bench('jsonmapper/jsonmapper json mapper "best fit"');
// -------------------------------------------------------------------------------------------------------
$mapper2 = (new \JsonMapper\JsonMapperFactory())->default();
bench('new json mapper "default"');
for ($i = 0; $i < $runs; $i++) {
    $o = new Contact();
    $mapper2->mapObject($json, $o);
}
bench('jsonmapper/jsonmapper json mapper "default"');
// -------------------------------------------------------------------------------------------------------
$c = new ArrayCache();
$mapper2 = (new \JsonMapper\JsonMapperFactory())->create(
    new PropertyMapper,
    new \JsonMapper\Middleware\NamespaceResolver($c),
    new \JsonMapper\Middleware\TypedProperties($c),
);
bench('jsonmapper/jsonmapper json mapper "custom"');
for ($i = 0; $i < $runs; $i++) {
    $o = new Contact();
    $mapper2->mapObject($json, $o);
}
bench('jsonmapper/jsonmapper json mapper "custom"');
// -------------------------------------------------------------------------------------------------------

$hydrator = new ObjectHydrator();
bench('eventsauce/object-hydrator json mapper');
for ($i = 0; $i < $runs; $i++) {
    $o = $hydrator->hydrateObject(
        Contact::class,
        $jsonArr,
    );
}
bench('eventsauce/object-hydrator json mapper');
// -------------------------------------------------------------------------------------------------------

$dumpedClassNamed = "YYY\\XXX";
$dumper = new ObjectHydratorDumper();
$classesToDump = [Contact::class];

$code = $dumper->dump($classesToDump, $dumpedClassNamed);
file_put_contents('XXX.php', $code);
require 'XXX.php';

/** @var ObjectHydrator $hydrator */
$hydrator = new YYY\XXX();
bench('eventsauce/object-hydrator optimized json mapper');
for ($i = 0; $i < $runs; $i++) {
    $o = $hydrator->hydrateObject(
        Contact::class,
        $jsonArr,
    );
}
bench('eventsauce/object-hydrator optimized json mapper');

// -------------------------------------------------------------------------------------------------------
$mapper3 = (new \CuyZ\Valinor\MapperBuilder())
    ->mapper();
bench('cuyz/valinor json mapper');
for ($i = 0; $i < $runs; $i++) {
    $o = $mapper3->map(Contact::class, new \CuyZ\Valinor\Mapper\Source\JsonSource($rawJson));
}
bench('cuyz/valinor json mapper');

composer.json

{
    "require": {
        "json-mapper/json-mapper": "^2.9",
        "netresearch/jsonmapper": "^4.0",
        "eventsauce/object-hydrator": "^0.1.0",
        "cuyz/valinor": "^0.4.0"
    }
}

output

testMapper> php8 .\bench.php
cweiske/jsonmapper json mapper took 0.8331107 s
jsonmapper/jsonmapper json mapper "best fit" took 3.4992287 s
jsonmapper/jsonmapper json mapper "default" took 1.7027062 s
jsonmapper/jsonmapper json mapper "custom" took 2.079014 s
eventsauce/object-hydrator json mapper took 1.4441185 s
eventsauce/object-hydrator optimized json mapper took 0.1095334 s
cuyz/valinor json mapper took 4.9791515 s