<!-- Collection of code snippets by Arne Vajhøj -->
<!-- (from articles on eksperten.dk / vajhoej.dk written sometime between 2004 and now) -->
<?php
spl_autoload_register(function ($clznam) {
    include $clznam . '.php';
});

 class C1 {
    private static $v1 = 0;
    private $v2;
    public function __construct() {
        C1::$v1++;
        $this->v2 = C1::$v1;
    }
    public function __toString() {
        return sprintf('%d/%d', $this->v2, C1::$v1);
    }
 }

 class C2 {
     private static $v1 = 0;
     private $v2;
     public function __construct() {
         C2::$v1++;
         $this->v2 = C2::$v1;
     }
     public function __toString() {
         return sprintf('%d/%d', $this->v2, C2::$v1);
     }
 }
 
 class C2Factory {
     public function createC2() {
         return new C2();
     }
 }
 
 class C {
     private $c1a;
     private $c1b;
     private $c2a;
     private $c2b;
     public function __construct(C1 $c1a, C1 $c1b, C2Factory $c2fa, C2Factory $c2fb) {
         $this->c1a = $c1a;
         $this->c1b = $c1b;
         $this->c2a = $c2fa->createC2();
         $this->c2b = $c2fb->createC2();
     }
     public function test() {
         echo sprintf("Default : %s %s\r\n", $this->c1a, $this->c1b);
         echo sprintf("Factory : %s %s\r\n", $this->c2a, $this->c2b);
     }
 }

include 'DI/functions.php';
 
use DI\ContainerBuilder;
use function DI\create;
use function DI\get;

$builder = new ContainerBuilder();
$builder->addDefinitions([C::class => create(C::class)->constructor(get(C1::class), get(C1::class), get(C2Factory::class), get(C2Factory::class)),
                          C1::class => create(C1::class),
                          C2Factory::class => create(C2Factory::class)
                         ]);
$cont = $builder->build();
$o = $cont->get(C::class);
$o->test();

?>