如何从Symfony 4中的Asset组件获取assets文件夹的绝对路径？

Question

I'm uploading and saving images to the assets folder and I need to get the absolute path. I could have hard coded it but it would be all wrong if I was to deploy the app to a server with different folder structure. So I need the Asset component.

In the twig template, I can call

<img src="{{ asset("assets/img/" ~ image) }}">

and it will all work. But how do I use it in the controller and return only the path?

Answer 1

You can try this:

use Symfony\Component\Asset\Package;
use Symfony\Component\Asset\VersionStrategy\EmptyVersionStrategy;

$package = new Package(new EmptyVersionStrategy());

$imageUrl = $package->getUrl('/');