Symfony 4, get the root path of the project from a custom class (not a controller class)

Question

In the src/Utils directory, I created a custom class Foo for various things. I\'m looking for a way to get the absolute root path of the symfony 4 project <

Answer 1

This is work :

// from Foo class
use Symfony\Component\HttpKernel\KernelInterface;
...
class Foo{
    private $rootDir;
    public function __construct(KernelInterface $kernel)
    {
        $this->rootDir = $kernel->getProjectDir();
    }
    public function myfoomethod(){
        return $this->getRootDir();
    }
    public function getRootDir(){
        return $this->rootDir;
    }
}


// from the controller class 
use App\Utils\Foo;
...
class FaaController extends AbstractController
{
    /**
     * @Route("/scenario", name="scenario")
     */
    public function new(Foo $foo)
    {
        dump($foo->myfoomethod()); //show the dir path !
        return $this->render('faa/index.html.twig');
    }
}