How to get current URL - Drupal 8 & 9

Every now and then you may find yourself needing to collect the URL of the current page. I haven't seen Drupal provide a way to do that in one go.

But there is a combination of codes that can help you. Let me show you what I mean.

$host = \Drupal::request()->getSchemeAndHttpHost();

This will output "" - important to note there is no trailing slash!

$page = \Drupal::request()->getRequestUri();

This will output "/tutorial/another-drupal-thing-learn/again"

All together now:

$full_url = $host . '' . $page;

This will output