PHP code example of rs-world / instantiator

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

rs-world / instantiator example snippets

class DatabaseIntantiator extends Instantiator
{
    protected function register()
    {
        $this->instance([
            "default" => function($a, $b) {
                return new \Path\To\Database($a, $b);
            },
            "test" => function($a, $b) {
                return new \Path\To\FakeDatabase($a, $b);
            }
        ]);
    }

    public function get(A $a, B $b): \Path\To\DatabaseInterface
    {
        return $this->getInstance($a, $b);
    }
}

// in default mode
$dbi = new DatabaseInstantiator();
$db = $dbi->get($a, $b);
var_dump($db instanceof \Path\To\Database); // prints true

// in test mode
$dbi = new DatabaseInstantiator("test", true);
$db = $dbi->get($a, $b);
var_dump($db instanceof \Path\To\DatabaseFake); // prints true

// set global mode to "test"
Instantiator::setGlobalMode("test");
// now
$dbi = new DatabaseInstantiator();
$db = $dbi->get($a, $b);
var_dump($db instanceof \Path\To\Database); // prints false
var_dump($db instanceof \Path\To\DatabaseFake); // prints true

class ServiceInstantiator extends Instantator
{
    protected function register()
    {
        // ...
        // ...
        $dbi = new \Path\To\DatabaseInstantiator(
            $this->getMode(),
            $this->getFallback()
        );
        $db = $dbi->getInstance($a, $b);

        $this->instance([
            "default" => function($x) use($db) {
                return \Path\To\Service($db, $x);
            }
        ]);
    }

    public function get($x): ServiceInterface
    {
        return $this->getInstance($x);
    }
}

// ...
$si = new ServiceInstantiator();
$service = $si->get($x);
// ...