Deep object graph resolution performance test

deep_object_graph_container_perf.php

<?php
require __DIR__ . '/vendor/autoload.php';
use Kanian\ContainerX\ContainerX;


class A 
{
    public function __construct()
    {

    }
}
class B extends A
{
    public function __construct(A $a)
    {
    }
}
class C extends B
{
    public function __construct(B $b)
    {
    }
}
class D extends C
{
    public function __construct(C $c)
    {
    }
}
class E extends D
{
    public function __construct(D $d)
    {
    }
}
class F extends E
{
    public function __construct(E $e)
    {
    }
}
class G extends F
{
    public function __construct(F $f)
    {
    }
}
class H extends G
{
    public function __construct(G $g)
    {
    }
}
class I extends H
{
    public function __construct(H $h)
    {
    }
}
class J extends I
{
    public function __construct(I $i)
    {
    }
}
$c = new ContainerX();
$c['A'] = function ($c = null) {
    return new A;
};
$c['B']  = function ($c = null) {
    return new B($c['A']);
};
$c['C'] = function ($c = null) {
    return new C($c['B']);
};
$c['D'] = function ($c = null) {
    return new D($c['C']);
};
$c['E'] = function ($c = null) {
    return new E($c['D']);
};
$c['F'] = function ($c = null) {
    return new F($c['E']);
};
$c['G'] = function ($c = null) {
    return new G($c['F']);
};
$c['H'] = function ($c = null) {
    return new H($c['G']);
};
$c['I'] = function ($c = null) {
    return new I($c['H']);
};
$c['J'] = function ($c = null) {
    return new J($c['I']);
};
// Let loading happen to ensure that any required classes were autoloaded before measuring the time.
$u = $c['J'];
unset($u);

$t1 = microtime(true);
for ($i = 0; $i < 10000; $i++) {
    $u = $c['J'];
}
$t2 = microtime(true);
$results = [
    'time' => $t2 - $t1,
    'files' => count(get_included_files()),
    'memory' => memory_get_peak_usage() / 1024 / 1024,
];
echo json_encode($results);