gzhegow/di

Dependency-Injector

1.6.4 2021-11-01 19:41 UTC

Requires

• php: >=7.3
• psr/container: ~1.0

Requires (Dev)

• phpunit/phpunit: ~9.0
• symfony/var-dumper: ^5.3

MIT

• gzhegow

README

Микро-контейнер с инжектором зависимостей

<?php

namespace Gzhegow\Di;

use Gzhegow\Di\Tests\Classes\B;
use Gzhegow\Di\Tests\Classes\BB;
use Gzhegow\Di\Tests\Classes\BInterface;
use Gzhegow\Di\Tests\Classes\BBInterface;
use Gzhegow\Di\Tests\Classes\BDeferableProvider;
use Gzhegow\Di\Tests\Classes\BBBootableProvider;

// create instance
$di = new Di();

// static singleton
// $di = Di::getInstance(); // get
// Di::setInstance($di); // replace

// run register() for provider
$di->register(BDeferableProvider::class);
$di->register(new BBBootableProvider($di));

// copy `sources` (vendor) files/directories of to `targets` (application)
$di->discover();

// update discovered config like in production
$provider = $di->getProvider(BBBootableProvider::class);
file_put_contents($provider->path('config'), '<?php return [ 3, 2, 1 ];');

// run boot() for all registered bootable providers
$di->boot();

// get instances (this also run boot() for deferable providers)
$b1 = $di->get(BInterface::class);
$b2 = $di->get(BInterface::class);
$bb = $di->get(BBInterface::class);

// check instances
$this->assertInstanceOf(B::class, $b1);
$this->assertInstanceOf(B::class, $b2);
$this->assertInstanceOf(BB::class, $bb);

// check discovered config (we updated it above)
$this->assertEquals([ 3, 2, 1 ], $bb->getConfig());

// check singleton
$this->assertEquals($b1, $b2);

// call method or function
$fn = function (B $b, $hello, BBInterface $bb, $world) {
    return func_get_args();
};
$params = [
    '$hello' => 1,
    '$world' => 2,

    // > keys could be `binds`
    // BInterface::class => $b1,
    // BBInterface::class => $bb,

    // > keys could be argument names prefixed with $
    // '$b' => $b1,
    // '$bb' => $bb,

    // > keys could be argument positions (integers)
    // 0 => $b1,
    // 2 => $bb
];
$result = $di->call($fn, $params);

// check arguments
$this->assertEquals([ $b1, 1, $bb, 2 ], $result);